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medical student, and took the membership of the College of Surgeons, as well as the licentiateship of the Apothecaries' Society, in 1837. In the year 1839 he graduated at Heidelberg, and was appointed lecturer on Materia Medica at St. George's School of Medicine four years later. In 1845 he was elected to the Fellowship of the Royal Society, and five years afterwards became Professor of Natural History in New College, London. In 1851 he received the degree of LL.D. from Amherst, U.S.; in 1853 was made lecturer on Anatomy and Physiology at the Grosvenor-place School of Medicine; in 1858, Superintendent of the Food Collection, and in 1862 Examiner in Botany to the Science and Art Department of the South Kensington Museum. In 1859 he was President of the Microscopical Society, and in 1862 he was, after a severe contest, elected Coroner for Central Middlesex, which post he retained until his death.

For about twenty-five years Dr. Lankester was secretary of Section D of the British Association, of which he was one of the originators, being a most intimate friend of Edward Forbes, with whom, in his younger days, as a bachelor, he lodged in London. In conjunction with Mr. Busk, he for eighteen years edited the Quarterly Journal of Microscopic Science, after which he did so with his son, Mr. E. Ray Lankester, Fellow of Exeter College, Oxford.

Dr. Lankester's contributions to scientific and medical literature are very considerable. He edited the Natural History portion of the "English Encyclopædia," and contributed the article "Rotifera" to Todd's "Encyclopædia of Anatomy and Physiology." In 1849 he published a translation of Schleiden's "Principles of Scientific Botany," and, in 1859, of Kirchenmeister's "Animal Parasites." In conjunction with Dr. Letheby he contributed the article on Sanitary Science to the "Encyclopædia Britannica." Among his most popular works is the well-known "Halfhours with the Miscroscope." His contributions to this journal have been several, and, like all that he wrote, are marked by their admirable style and tone, as well as by the liberal spirit of modern scientific thought, which gives them an almost youthful freshness; we have, not less than others, to deplore the loss that has been sustained by ourselves in his premature decease.

To those who, like the present writer, were acquainted with him, and had the privilege of passing many pleasant hours in his company, Dr. Lankester was always genial and kindly, inspiring others with that hopefulness which was so marked a feature of his own character. He made many sincere friends, amongst whom was Henfrey the botanist, who named the genus of plants (which is grown in many nursery gardens) Lankesteria, after him. It was his kindly spirit which directed his attention to questions of social organisation, and he always referred to the articles by himself, in the Daily News-when a young man-on Medical Reform, as having been of assistance in the passing of Mr. Wakley's bill. His remains were interred in the churchyard of Hampstead Church on Tuesday last.

NOTES

NEWS concerning three of the Transit Expeditions is to hand. Advices from Capetown of Oct. 6 state that the German screw corvette Gazelle, bound to Kerguelen on the Transit Expedition, arrived in Table Bay and left on Oct. 4. The Gazelle will visit the Crozette Islands, and proceed from thence to Kerguelen. If circumstances are favourable she will search for a warm current, supposed to exist between 60 and 80 east, and endeavour to reach Wilkes Land. She will then visit the north and west coast of Australia, the coast of Guinea, and several island groups of the Pacific. Lord Lindsay had arrived out and left for Mauritius in his yacht, there to watch the transit of Venus. A Cairo correspondent of the Daily News, writing under

date Oct. 20, sends a long account of the preparations made by the Egyptian party. General Stanton, the Consul-General, has taken the greatest interest in the expedition, and put himself to considerable trouble to make everything smooth for the party and enable them to make all the necessary arrangements. All the instruments have arrived safely, and Capt. Browne, the chief of the party, has determined to erect his observatories on the top of the Moquattam Hills, a distance of about three miles in a direct line from Shepheard's hotel. They are about 600 feet in height and overlook the whole country. Capt. Browne, who has been carefully observing the atmosphere, finds it free of moisture, at least about sunrise; which is most important, as the maximum altitude that will be observed will be only 15°. It is at present the intention to form a camp on the top of the hill, the tents having been furnished by the Egyptian Government. Mr. Dixon, a civil engineer in Cairo, has been of great assistance in the matter of transit. Capt. Abney was expected to leave for Thebes on the 26th. Admiral Ommaney had arrived at Alexandria, but to what party he would be attached was not known.

THE generally well-informed London correspondent of the Scotsman states that another Arctic Expedition will be despatched in the ensuing year under the auspices of the Government and the Royal Geographical Society. He believes that it is so far considered an accepted fact that the expedition will leave these shores in the spring of 1875, inasmuch as it has the approval of the Premier.

SOME time since we pointed out the extreme inconvenience of the form and manner in which our learned societies publish their "Transactions." Anyone who is not a Fellow, for example, of the Royal Society, and who may wish to possess a memoir, say on some physiological subject published in the “ Philosophical Transactions," is probably debarred from doing so by finding that he must purchase with the memoir which he wants a number of others belonging to the most diverse subjects, pure mathematics being almost invariably one. We advocated, as the common-sense remedy for this state of things, the sale of separate copies of each memoir. We were not aware at the time that this was actually done by the Linnean Society. After the completion of the twenty-sixth volume of its "Transac tions," it was decided by the Council that twenty-five separate copies of each memoir should be kept for sale. Probably because the arrangement is not generally known, the sale of the part of the "Transactions" is still as good, if not actually better than that of the memoirs which they contain. The price is, however, proportionally higher, which may have something to do with this. Thus the part of the "Transactions" containing Prof. Owen's memoir on the King Crab is sold to Fellows for 9s., to the public for 12s. The corresponding prices of the memoir itself (of which no separate copies have been sold) are 7s. 6d. and 105. But the part also contains another paper, the prices of which are 45. 6.1. and 6s. In one case all the available spare copies were purchased by the author.

WE are glad to be able to announce that a considerable portion of the galleries of the late International Exhibition at South Kensington, taken by the India Office, will be devoted to the display of Natural History collections of that department of the Government. The fact of the collections having been kept in an unavailable form for so many years past has always been a great grievance to working naturalists, and has called forth many remonstrances, from ourselves among others.

MR. RICHARD LYDEKKER, B. A., of Trinity College, Cambridge, second in the First Class of Natural Sciences Tripos in 1871, has been appointed to the Paleontological Department of the Geological Survey of India in the room of the late Dr. Stoliczka. Mr. Lydekker left some months since for India,

in company with some friends, their expedition having the combined objects in view of sporting and the pursuit of natural history, and has passed most of the interval in Cashmere and Thibet, where he is believed to have made very considerable collections-zoological, botanical, and geological.

MR. MARTIN, Senior in the Natural Science Tripos of 1873, was last week elected to a Fellowship at Christ's College, Cambridge.

GODFREY'S Laboratory, Maiden Lane, Strand, in which the Hon. Robert Boyle worked out his phosphorus experiments, has been converted into a Roman Catholic chapel.

SOME of the Paris newspapers announced that M. Wurtz, Dean of the Faculty of Medicine at Paris, would be obliged to resign; the Figaro went so far as to give the name of the intended successor of the celebrated Professor of Chemistry -a M. Depaul. The rumour happily has proved false, and was maliciously spread because a clerk employed in the office of the Faculty had been dismissed for misdemeanour. There is, however, to be a demonstration among the students in honour of M. Wurtz, who is a great favourite with them.

THE Professorship of Applied Mathematics and Mechanism in the Royal College of Science for Ireland (Science and Art Department), vacant by the appointment of R. Ball, LL.D., F. R.S., to the Professorship of Astronomy in the Dublin University, has been filled by the appointment of H. Hennessey, F.R.S.

DR. JAMES APJOHN, F.R. S., has resigned the Professorship of Chemistry in the School of Physic attached to Trinity College, Dublin. Dr. Apjohn still holds the Professorships of Applied Chemistry and of Mineralogy in the University of Dublin. The Provost and Senior Fellows of Trinity College, Dublin, will, pursuant to the School of Physic (Ireland) Act, proceed on the 30th of January, 1875, to elect a Professor of Chemistry. There is a fixed salary of 400/. a year, with an additional payment of 100l. a year on condition that a number of Senior Sophisters nominated by the Bursar shall have free laboratory instruction. In addition the Professor has the fees for lectures and laboratory instruction, which ought to equal, at the lowest calculation, 400/. a year. The Professor will have the use of the college laboratory for analyses bearing on medical chemistry, such as medical and medico-legal investigations, and analyses connected with purposes of public health. Candidates are required to send their names, with the places of their education, the Universities where they have taken their medical degrees, and the places where they have practised, to the Registrar of Trinity College, Dublin, and to the Registrars of the King and Queen's College of Physicians in Ireland, Kildare Street, Dublin, on or before the 23rd of January, 1875. IN accordance with the wishes of the Professors of the Medical School of Trinity College, Dublin, the Provost and Senior Fellows have resolved that a three months' course of practical instruction in Human Histology shall be added to the curriculum for the degree of M.B., the same to be under the superintendence of Dr. Purser, King's Professor of the Institutes of Medicine. 110/. has been voted to buy twenty microscopes, and we presume a room will soon be built for the

purpose.

THE Competitive system is making daily progress' in France Four Commissaires de Folice being required, the Prefect of the Seine instituted a competition among the police-secretaries, and fourteen candidates offered themselves. A committee of examiners was appointed, the examinations have been held, and the candidates are awaiting the result, which will be issued very shortly. Up to the present time Commissaires de Folice have been appointed at the discretion of the Prefect, only from

amongst gentlemen holding the diploma of Licentiate in Law, and secretaries of police are obliged to possess that qualification before being admitted to the examination.

EACH year the five Paris Academies-the Academy of Sciences, the Academy of Fine Arts, the Academy of Inscriptions, the Academy of Moral Sciences, and the French Academy hold a general meeting on the 25th of October, the anniversary of 3 Brumaire, an. IV. (25th October, 1795), the day when the French Republic published the law organising the National Institute. During the Restoration the meeting was held yearly on the 24th April, the day when King Louis XVIII. returned to France, with the foreign troops, after the battle of Waterloo. the date of the annual celebration to the 25th October; but When the Republic was proclaimed in 1848, a decree changed the 19th of August, which was continued to be the date to 1870. when Napoleon III. accomplished his coup d'état, he appointed The Republic being again proclaimed, the celebration was restored appoints successively the president of the meeting. The turn of to the 25th of October. Each Academy or Class of the Institute the Academy of Sciences having come round this year, M. Bertrand, who is the president in charge, was the chairman of the whole Institute. His being a candidate for the perpetual secretaryship has given much interest to his presidential address, which was printed at full length in all the papers, and largely approved.

THE Prefect of the Seine has appointed a Commission to inquire into the state of lightning conductors—which 'are in a very imperfect condition on some public buildings—and the best method of testing their efficacy. The institution of this Commission appears to have been suggested by the corresponding committee which was appointed by the British Association, and which existed during two years without any result. It is to be hoped that the Farisian Commissioners will be more successful,

THE Municipal Council of Paris will very likely ask from the Government an authorisation to establish industrial schools in that city.

AT a meeting held a year ago in Islington, a large number of influential gentlemen were"appointed a committee to obtain for that large and important district a Public Library and Museum, under the "Public Libraries and Museums Act." A requisition to the vestry and overseers of the parish was circulated for signature, and the scheme has, we believe, met with general approval, so that we hope soon to see it carried into effect.

M. FAYE has officially announced himself a candidate for the post of Perpetual Secretary of the Academy of Sciences, but the chances of M. Bertrand do not appear to have been greatly altered.

THERE will be an examination at Sidney College, Cambridge, on Tuesday, April 6, 1875, and three following days, of students intending to commence residence in the following October, when (provided fit candidates present themselves) two scholarships will be awarded for natural science, one of the value of 60%., and one of the value of 40/. The scholarships will be tenable, under certain conditions, until the time of taking the B.A. degree, or until promotion of others to greater value.

A COPY of the coelometer, an instrument invented by Mr. W. Marsham Adams, B. A., late Fellow of New College, Oxford, for the purpose of illustrating elementary astronomy, is to be placed in the Examining Department of the Board of Trade at Tower Hill, and also on board her Majesty's training-ship Conway, at Birkenhead. Rear-Admiral Sir A. Cooper Key has we believe, signified his intention of applying to the Admiralty for leave to purchase one for the Naval College at Greenwich, of which he is the president.

WE have just received a paper by Dr. Pietro Pavesi, Professor of Zoology and Comparative Anatomy in the University of Genoa, entitled" Contribuzione alla storia naturale del genere Selaché," in which that naturalist shows that the Rashleigh❘ Shark (Polysprosopus rashleighanus) and the Broad-headed Gazer (P. macer), described as British by Mr. Crouch in his work on the fishes of our seas, are not, as Dr. Günther suggests in his valuable Catalogue of Fishes in the British Museum, monstrosities of Selache maxima, but belong to a species found in the Mediterranean, Selache rostrata (Macri), in which the eyes are situated at the base of the elongate, narrow, nasal snout, instead of near the point of the short snout, as they are in S. maxima.

We have received a little book with a very long title, published by Messrs. Ward, Lock, and Tyler. It is called "Arcadian Walks and Drives in the North-west Suburbs of London, for the Pedestrian, Carriage, Horse, and Bicycle," and contains a variety of hygienic and other hints to pedestrians, and forty-two schemes of walks and drives in the north-west district, together with notes on the fauna, botany, &c., of the localities visited. This "booklet" would be much improved and rendered more generally useful by the addition of a map.

A GREAT deal of interest is attached to the last report of Dr. King, the superintendent of the Calcutta Botanic Gardens, for, besides the usual details as to the exchange of plants and seeds with the Royal Gardens at Kew, and other similar colonial and foreign establishments- which exchange, by the way, has not been a light affair, inasmuch as from April 1873 to March 1874, 12,812 plants and 2,532 parcels of seeds were sent to various parts of the world—we have satisfactory accounts of the culti vation of the mahogany tree, the ipecacuanha, and the Para rubber tree. The former, as is well known, is a native of Central America and the West Indies; but there are, as Dr. King tells us, a good many old mahogany trees about Calcutta, which, however, rarely if ever yield perfect seed, so that fresh plants have been obtained direct from their native country. He says, further, that "it has been abundantly proved that the tree will thrive in most parts of Bengal, and that the Indian grown timber is valuable." There are fine mahogany trees in the gardens at Saharunpore and Madras, and Dr. King doubts not that it will grow admirably in almost any part of India in situations free from frost, and where a little moisture can be secured in very dry weather. Of the few trees that were left in the Calcutta Botanic Gardens after the last cyclone in 1867, the mahoganies are by far the finest ; they were planted about eight years since, and are now from 8 to 11 ft. in circumference, 6 ft. from the ground. The quality of the wood of some of the trees blown down in the cyclones of 1864 and 1867 was found to be excellent. Such, then, are the prospects of the successful acclimatisation of one of the most valuable furniture woods known so valuable indeed is it in European commerce, that about 40,000 tons are annually imported into Great Britain from Honduras, Jamaica, and San Domingo. So far as the increase of the ipecacuanha plants is concerned, the propagation by root and leaf-cuttings has been so successful that there is at present a stock of 63,000 living plants; whereas only four years since there were but twelve cuttings at the Cinchona Gardens, and seven out of these twelve were afterwards accidentally destroyed. Then again, with regard to the most valuable of all the indiarubber producing plants, namely, that of Para-the Hevea brasi liensis-six plants of which Dr. King took with him from Kew on his return to India in November last, we are told that already a few plants have been raised from cuttings taken from these six plants, and before the lapse of another year Dr. King hopes "to be able to report a considerable increase." The advantages to be obtained by the successful introduction of these trees into India are many, for besides the great superiority of the rubber

over that obtained from the East Indian figs, the principal of which is Ficus elastica, and consequently a higher market value, it will add to the Indian revenue by establishing a course of regular industry by a systematic tapping of the trees, and it will perhaps, to some extent, relieve the figs from a continued strain upon them, and probable future exhaustion.

IN a recently issued report on the trade and commerce of Java, we read that the total amount of Cinchona trees of all sizes and ages growing in Government plantations at the end of 1872 was 1,705,542, and the bark crop for the same year amounted to 18,000 kilogrammes.

IT has recently been discovered that the bamboo contains a dangerous poison which the natives of Java extract from the cane in the following manner. The cane is cut at each joint, and in the cavity is found a certain quantity of small fibrous matter of a black colour, which is covered with an almost imperceptible coating of tissue which contains the poison. If swallowed the filaments do not pass into the stomach, but remain in the throat and produce violent inflammation and ultimately death. Experiments are to be made with various kinds of bamboo, to test the existence and nature of this alleged poison.

THE Syndicate appointed last June to collect information as to the space and accommodation required for a new Geological Museum have issued their report. They consulted the present Professor of Geology (Mr. Hughes), who considers it desirable that a very much larger number of specimens should be exhibited under glass than is the case at present; that there should be larger intervals in the arrangement of the collection; that more ample accommodation should be provided for students wishing to work at special points in detail, and for lecturers who wish to bring a class or private pupils; that work-rooms, class-rooms, and library, together with private rooms for the Professor and a Paleontologist, which are wholly wanting at present, should be provided. The estimated space for the museum and necessary offices would be 31,700 square feet. The Syndicate do not regard the estimate as excessive, and there is no difficulty respecting a site, as the ground of the old botanic garden affords one of sufficient dimensions in proximity to the other museums of natural science. The sum of 10, 500/., which has up to the present time been subscribed towards a new museum as a memorial to Professor Sedgwick, would be far from sufficient for the erec tion of a museum such as is indicated by Professor Hughes. The cost of such a museum, with suitable fittings and furniture for every department, could not be estimated at less than 25,000/. The Syndicate do not consider by the terms of their appointment that they are called upon to suggest any source from which this sum can be supplied.

THE "Origin of Species" controversy has been resumed by M. Blanchard, a member of the French Institute, in the Revue des deux Mondes. The learned naturalist supports strong antiDarwinian theories.

A TELEGRAM from St. Petersburg has been received at Paris, stating that the Imperial Commission appointed to survey the Sea of Aral has finished its work. The level of that large inland sea is about 165 ft. above that of the ocean.

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THE signature to the letter on Supernumerary Rainbow," in NATURE, vol. x. p. 503, should not be Joseph, but Hugh Blackburn.

THE additions to the Zoological Society's Gardens during the past week include a Bonnet Monkey (Macacus radiatus) from India, presented by Mr. S. T. Hughes; a Black-backed Piping Crow (Gymnorhina leuconola) from South Australia, presented by Mr. F. Fuller; a Speckled Terrapen (Clemmys guttata) from North America, presented by Mr. A. B. Duncan ; a White Stork (Ciconia alba), two Thicknees (Edicnemus crepitans), European, deposited.

SCIENTIFIC SERIALS

THE Journal of Mental Science, October 1874.-This number opens with the address of Thomas Laws Rogers, M.D., presi. dent at the annual meeting of the Medico-Psychological Association, Aug. 6, 1874. His object was to procure a fixed meaning for the terms "restraint" and "seclusion,” and the clear sense and practical aim of his remarks present a sharp contrast to the rather wandering discussion which followed.-Dr. J. Batty Tuke has a paper on a case in which the clinical history and postmortem examination will, he thinks, support its being designated one of syphilitic insanity. Dr. Daniel Hack Tuke writes about the Hermit of Red-Coat's Green, and finds him insane, an opinion from which there is little room for dissent. Probably also it would have been well had he individually "been put under the protection of the Lord Chancellor and the inspection of his visitors;" it "would have been better for the neighbourhood, better for his family, and better for the Hermit of Red-Coat's Green himself." But could not those very considerations be urged, and often with greater force, in favour of a curtailment of the liberty of thousands of frivolous, reckless, immoral persons, who are a far greater pest to their family and neighbourhood than poor Lucas was after he became the hermit?-Dr. H. Hayes Newington contributes a thoughtful paper On different forms of stupor. In an interesting article on the mental aspects of ordinary disease, Dr. J. Milner Fothergill obtrudes his materialism in a way that will be distasteful to many, while to others the thing itself will appear shallow. Thought "is the product of the combustion of what was originally food." The brain of "Robbie Burns transmuted his oatmeal porridge into Tam O'Shanter."-In reviewing Dr. Maudsley's "Responsibility in Mental Disease," Mr. J. Burchell Spring, chaplain to the Bristol Lunatic Asylum, while doing justice to the ability of the work, seems to have the advantage of the author in matters of history. He very cleverly cuts away the ground from under Dr. Maudsley's rather uncalled-for assertion that the brutal treatment of the insane "had its origin in the dark ages of Christian superstition."

Journal de Physique, tome iii., No. 33, September.-This number commences with a description of the "phonoptometer" by M. J. Lissajous. This apparatus consists of an ordinary terrestrial telescope, of which the eye-piece is broken across, and the third lens from the eye (the one which inverts the image formed by the objective) attached to the prong of a tuning-fork. The lens is thus capable of vibrating in a vertical plane, the vibrations of the fork being maintained by an electro-magnet and contact-breaker. The telescope being directed to a distant object presenting a brilliant point, and the electro-magnet put into action, the point becomes a luminous vertical line if at rest, but if vibrating in a direction transverse to that of the motion of the lens, then the composition of the two movements gives rise to the well-known optical sound figures. The author claims for this ingenious instrument the power of determining the velocity of a luminous point on its trajectory, such as luminous projec tiles, bolides, &c.-Theory of the phenomena of diffraction observed to infinity or in the focus of a lens, by M. J. Joubert.On the mutual influence which two bodies vibrating in unison exercise upon one another, by M. A. Gripon. The author describes several experiments illustrating this remarkable action, employing for the purpose collodion membranes, which vibrate in unison with the column of air in the resonance boxes of tuning-forks, organ-pipes, &c. A small pendulum composed of a pitli ball suspended by a thread of cotton is attached to such a membrane, and the system is then brought near the resonant case of a vibrating fork, with which the membrane is capable of vibrating in unison. The membrane vibrates strongly when at a distance of one metre, but when brought to within four or five centimetres of the mouth of the case, the sound of the latter undergoes a considerable weakening, and the pendulum of the membrane is scarcely moved. If the vibrations of the fork have but small amplitude, the prox imity of the membrane to the resonant case extinguishes the sound altogether. None of these effects are produced if the mem. brane is not capable of vibrating in unison with the fork. If a membrane of a lower note is placed in front of the case and a current of warm air directed upon it, the weakening of the sound only occurs when the note of the fork is reached. Arrangements for repeating the experiments with organ-pipes are also described.-Graphic representation of the constants of vol. taic elements, by M. A. Crova.-Some experiments concerning

the effects of magnetism on the electric discharge through a rarefied gas when the discharge occurs in the prolongation of the axis of the magnet, by MM. Auguste De la Rive and Edouard Sarasin. The authors employed in this research a columnar electro-magnet. The tube through which the discharge is transmitted rests on the upper extremity of the magnet, the line of electrodes being a prolongation of the axis of the magnet. Various gases sealed up in Geissler tubes have been experimented with, the discharge from a Ruhmkorff coil being allowed to traverse the gas. Changes occur in the appearance of the luminous discharge where the magnet is excited, these changes being accompanied by a change in the resistance offered to the current by the gas. Thus a tube containing hydrogen permitted the passage of an induced current marking 25° on the galvanometer when the magnet was not excited, but when excited the galvanometer reading was 40°. It seems to be a law that the augmentation in the intensity of the current is greater with a gas which is a good conductor than with one which is an inferior conductor of electricity. The authors confine themselves in this paper to a description of the facts without entering into theoretical considerations.-The number concludes with three papers reprinted from Poggendorff's Annalen: On the stroboscopic determination of the intensity of sounds, by E. Mach; Researches on magnetisation, by Holz; O. E. Meyer and F. Springmuhl, On the internal friction of gases.

Zeitschrift der Esterreichischen Gesellschaft für Meteorologie, Oct. 15.-In an article on the state of development or forwardness of vegetation in Italy compared with that of Giessen, in Germany, Prof. H. Hoffmann expresses his regret that for the greater part of Italy we possess no observations of the kind to which he wishes to direct attention. A knowledge of the relative state of vegetation at many different places would help invalids to the choice of a residence congenial to them, and dispel the false estimates of Italian climate now so common. In the course of a rapid visit to Italy in March and April, 1874, he took a number of observations, and compared them on his return to Giessen with like observations simultaneously taken at that place. The weather was fortunately fine and fairly uniform over Central and Southern Europe during the period of his travels. The average state of vegetation in open situations can be roughly calculated under normal conditions by reckoning for every degree southwards an advance of 3 days. Direct observation shows this rule generally to hold good. Rome is 8° south of Giessen, Naples 9°; this gives, at the rate above mentioned, an advance for Rome of 30, for Naples of 34 days. On looking at the map which accompanies Prof. Hoffmann's paper, we find the real difference to have been for Naples 35, for Rome 23; and so with many other places in Italy. If we have the number of days' advance in the spring, by doubling it we obtain the relative length of summer, or the period of vegetation. The Riviera di Porrente is quite abnormal, having a warm and early spring. Prof. Hoffmann's method consisted in taking the mean of the number of days' advance before Giessen, of the bursting into leaf or flower of several common kinds of trees in a certain place, and making this number the criterion of climate. In conclusion, he affirms that the extended observation of a single species of tree in the above manner, with regard also to the time of first fruits, would give us a new insight into comparative climatology, and that after various species had been so dealt with, maps might be made, exhibiting for each month a fair example in the development of one of these species. A list of the plants observed is appended. Among the Kleinere Mittheilungen, in a communication from Dr. Hildebrandtson, director of the Meteorological Department of Upsala Observatory, we find that he arrives at results similar to those of Mr. Ley respecting the movements of cirrus, this cloud appearing to move away from the centre of a cyclone and towards the centre of an anticyclone.

SOCIETIES AND ACADEMIES
MANCHESTER

Literary and Philosophical Society, Oct. 20.—Edward Schunck, F.R.S., president, in the chair.-E. W. Binney, F. R. S., stated that he had been so fortunate as to find a specimen of Stigmaria which he exhibited to the Society, from the bullion coal at Clough Head, near Burnley, having the medulla perfectly preserved. Mr. R. D. Darbishire, F.G.S., exhibited and described the Paleolithic (French and English drift) implements collected

for the soirée at the Owens College.-Prof. Boyd Dawkins, F.R.S., brought before the notice of the Society the conditions under which the paleolithic implements are found in the riverstrata and in the caves, in association with the extinct mammalia, such as the mammoth and woolly rhinoceros. Although the number of flint implements from the river-strata in various collections was very great, yet it is small when viewed in connection with the enormous quantity of gravel removed in their discovery. They are not evenly distributed, but cluster round certain spots. Their discovery in India along with the extinct mammalia proves that man was living, both in Europe and in Southern Asia from the Ganges to Ceylon, in the same rude uncivilised state, at the same time in the life-history of the earth. He also called attention to the art of the hunters of the reindeer and mammoth in the south of France, Belgium, and Switzerland, an art eminently realistic, and by no means despicable; and he inferred from their art and implements and the associated animals that they may be represented at the present day by the Eskimos.-On a colorimetric method of determining iron in waters, by Mr. Thomas Carnelly, B.Sc.; communicated by Prof. H. E. Roscoe, F.R.S. PHILADELPHIA

Academy of Natural Sciences, June 23.-Dr. Ruschenberger, president, in the chair.-Mr. B. Waterhouse Hawkins gave his views on the construction of the pelvis of Hadrosaurus.— Prof. Cope described a species of Dipnoan fish of the genus Ctenodus, from the coal measures of Ohio.

June 30.-Dr. Ruschenberger, president, in the chair. Anatomical notes by Dr. Chapman were read, On the disposition of the Latissimus Dorsi, &c., in Ateles geoffroyi and Macacus rhesus, and On the Flexor Brevis Digitorum in Ateles geoffroyi. On report of the committee to which it was referred, the following paper was ordered to be published :-"On habits of some American species of birds," by Thomas G. Gentry.

July 7.-Dr. Ruschenberger, president, in the chair.-Prof. Persifor Frazer, jun., continued the account of his attempts to reconcile the results of the analyses of minerals by the best chemists with formulas which were constructed on the doctrine of quantivalence, i.e., the known atom-saturating power of the elements. On change of habit in Smilacina bifolia. Mr. Thomas Meehan stated that he had recently seen a case where the stolons had advanced from the ground, and up the trunk of a large chestnut tree, to the height of about 2 ft.; the original stolons for several years back having died away, and the plant taken in a purely epiphytal character. The roots and stolons mostly had penetrated the coarse rough bark of the chestnut tree, the leaves only being chiefly visible.

July 14.-Dr. Ruschenberger, president, in the chair.-Prof. Cope stated that the snakes of the genus Storeria, B. and G., are viviparous like Eutania and other tropidonotine genera to which they are allied.-Prof. Cope gave a synopsis of the result of his work in connection with Hayden's United States Geological Survey of the Territories during the season of 1873. He stated that the investigation covered principally the palaeontology of the Cretaceous, Eocene, Miocene, and Pliocene periods in Colorado. The whole number of species of vertebrata obtained was 150, of which 95 were at the time new to science. The Cretaceous species were both terrestrial and marine, and the Miocene were most numerous. These numbered 75 species, of which 57 were

new.

PARIS

Academy of Sciences, Oct. 19.-M. Bertrand in the chair. -The following papers were read :-On series of similar triangles, by M. Chasles. -Observation of the solar eclipse of Oct. 10, 1874, with the spectroscope; tables of the observations of solar prominences from Dec. 26, 1873, to Aug. 2, 1874, by P. Secchi.-On the dissociation of bydrated salts, by M. H. Debray. This is a reclamation of results published by M. G. Wiedermann in a memoir "On the dissociation of the hydrated sulphates of the magnesian group."-On magnetic condensation In soft iron, by M. A. Lallemand. The author describes a series of experiments illustrating this property of soft iron. The condensation appears to depend on the intensity of the magnetism developed in the iron.-Hypothesis of the imponderable ether, and on the origin of matter, by M. Martha-Beker.-On the distribution of the sugar and mineral principles in beet, by M. Ch. Violette. The author has arrived at the following conclusions. The proportions of sugar contained in the sacchariferous and cellular tissues of beet differ but little. 2. The sugar increases in arithmetical progression along the axis of the root, from the upper extremity to the tip. 3. The mineral con

stituents do not undergo any regular variation along the axis, but chlorides are more abundant towards the upper extremity than at the tip. 4. Mineral constituents are more abundant in the cellular than in the sacchariferous tissues. 5. Chlorides are considerably more abundant in the cellular than in the saccha riferous tissues. 6. The chlorides are more liable to variation in the two kinds of tissues than the other mineral principles.-Experiments on the circular compass made on board the despatch-ship Faon and the armour-plated frigate Savoie, by M. E. Duchemin.-Remarks concerning recent notes by MM. Signoret and Lichtenstein on the different known species of the genus Phylloxera, by M. Balbiani. The author points out that P. Lichtensteinii recently described by him is specifically distinct from P. Rileyi, and again restates his belief that the species seen by M. Lichtenstein on Quercus coccifera was not P. vastatrix.—Observations relating to a recent note by M. Rommier "On experiments made at Montpellier on phylloxerised vines with M. Petit's coal-tar," by M. Balbiani.— Influence of temperature on the development of Phylloxera; extract from a letter from M. Maurice Girard to M. Dumas. Other communications relating to Phylloxera were received from various authors.-Generalisation of Euler's theorem on the curvature of surfaces, by M. C. Jordan.- Observations relating to a recent note by M. Lecoq de Boisbaudran on supersaturation, by M. D. Gernez.-Researches on the decomposition of certain salts by water, by M. A. Ditte.: When water is added to a solution of mercuric sulphate a basic sulphate is precipitated. This basic salt forms the subject of the present research.-The colouring matter of the blood (hæmatosine) contains no iron, by MM. C. Paguelin and L. Jolly. The authors describe the preparation and purification of hæmatosine. By repeated macerations with alcoholic ammonia and subsequent filtration, hæmatosine is at length obtained completely free from iron.-On the movement excited in the stamens of Synanthereæ, by M. E. Heckel.-M. F. Garrigou communicated an analysis of the stalactitic deposits found in the chimneys of iron forges.-During the meeting M. Le Verrier presented the meteorological atlas of the Observatory of Paris, containing observations for the years 1869, 1870, and 1871.

BOOKS RECEIVED

ENGLISH-Elementary Treatise on Practical Chemistry: Frank Clowes, B.Sc. (Churchill).-Animal Mechanism (International Series): E. J. Marey (H. S. King and Co.).-A Treatise on Magnetism: H. Lloyd, D. D. (Longmans). Brinkley's Astronomy: Stubbs and Brünnow (Longmans).-A Peep at Mexico: J. L. Geiger, F.R.G.S. (Trübner).-Pharmacographia: Flückiger and Hanbury (Macmillan).-Cave Hunting: W. B. Dawkins (Macmillan).Telegraph and Travel: Col. Sir F. J. Goldsmid, C.B., K.C.S.I. (Macmillan).-Sun and Earth great Forces in Chemistry: T. W. Hall, MD, L.R. C.S.E. (Trübner).-Magnetism: H. Lloyd, M. D., D.C.L. (Longmans. -The Protoplasmic Theory of Life: L. Beale (Baillière and Co.)-Lee's Philosophical and Literary Society, Annual Report, 1873-74.-Fiske's Cosmic Philosophy (Macmillan and Co.)

AMERICAN.-Butterflies of North America, Parts I. and II.: W. H Edwards (Hurd and Houghton, New York).

FOREIGN.-Atti della Reale Accademia Dei Lincei, vol. xxvi.-Mèmore sur la maladie de la Vigne, et sur son traitement: Louis Faucon (Paris) Etudes sur la nouvelle maladie de la Vigne: Maxime Cornu (ParisEtudes sur la nouvelle maladie de la Vigne dans le Sud-Est de la France M. Duclaux (Paris). Les Arachnides de France: Eugène Simon (Paris) Anthropogenie: Ernst Hæckel (W. Engelmann, Leipzig).

COLONIAL-Elementary Dynamics: W. G. Willson, M. A., &c. (Thacke and Co, Calcutta).-Report of the Meteorological Reporter to the Govern ment of Bengal: H. F. Blandford (Calcutta).-Patents and Patentees W. H. Archer (Melbourne).

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