Archosauria included in Sauropterygia, Streptosauria, Thecodontia, Crocodilia, Dinosauria. Two recent species of Crocodilia, Perosuchus fuscus, and Osteolamus tetraspes Cope, are redescribed and figured. Mr. Cope mentions the following as the most important general results of his investigations of extinct Reptilia: 1st, that the Dinosauria present a graduated series of approximations to the birds, and possess some peculiarities in common with that class, standing between it and the Crocodilia; 2nd, that serpents exist in the Eocene formations of this country; 3rd, that the Chelydra type was greatly developed during the American Cretaceous, and that all the supposed marine turtles described from it, are really of the first named group; 4th, that the Reptilia of the American Triassic are of the Belodon type; 5th, the discovery of the characters of the order Pythonomorpha; 6th, the discovery of the characters of the order Streptosauria; 7th, the development of the characters of numerous members of the Batrachian suborder Microsauria in the United States.

The illustrations accompanying this memoir are profuse and well executed.

V.

11. Bulletin of the Museum of Comparative Zoology. No. 9,Preliminary Report on the Echini and Star-fishes dredged in deep water between Cuba and the Florida Reefs, by L. F. de Pourtales, Assist. U. S. Coast Survey; prepared by ALEXANDER AGASSIZ.I, Catalogue of the Echini; II, On the young stages of Echini; III, Bathymetrical and geographical distribution; IV, List of the star-fishes.

No. 10,-Preliminary Report on Ophiuride and Astrophytidae; prepared by THEODORE LYMAN.-I, General remarks; II, Descriptions of new genera and species, with critical remarks.

No. 11,-List of the Crinoids obtained on the Coasts of Florida and Cuba by the United States Coast Survey Gulf Stream Expeditions, in 1867, 1868, 1869; by L. F. de POURTALES.

No. 12,-List of Holothuridae from the Deep-sea dredgings of the United States Coast Survey; by L. F. de POURTALES.-These important and interesting papers were received too late for suitable notice in this number. They contain descriptions of numerous new and remarkable genera and species, together with tables of the distribution of the species in depth and geographically. The observations of Mr. Agassiz on the structure and development of numerous young Echini are particularly important.

V.

12. The Academy, a monthly record of Literature, Learning, Science and Art.-The first number of this new London monthly, a quarto of 28 pp., was issued by the publisher, John Murray, on the 19th of October. It promises to be a journal of fair and learned criticism, and to some extent a repository of new discoveries in its several departments. Price 6d; or stamped, 7d.

13. Nature, a Weekly illustrated Journal of Science. Published by Macmillan & Co., London. No, 1, November 4th. 22 pp., between 8vo and 4to, exclusive of advertisements. Price fourpence.-Devoted to discoveries in all departments of Nature

science, as the title indicates, and advocating the views of Darwin. It includes among its contributors many of the most eminent men of science in Great Britain, and promises to be an able and spirited journal. The first number opens fittingly with the aphorisms on nature by Goethe, translated by Huxley. Then follows an article on the fertilization of winter-flowering plants, containing new results, as a sequel to Mr. Darwin's observations, by A. W. Bennett. Other subjects are-the recent eclipse of the sun, by J. Lockyer; Science-teaching in schools; the late Professor Graham; Triassic Dinosauria, (under which, Mr. Huxley gives good reason for regarding the Thecondontosaurs as true Dinosaurs, and adopts Prof. Cope's conclusions that the Bathygnathus of Prince Edward's Island is Dinosaurian); others, on a few topics in chemistry and physics, besides notices of new works, and of the Proceedings of some prominent Societies.

Allgemeine Musiklehre. Ein Hülfsbuch für Lehrer und Lernende in jedem Zweige musikalischer Unterweisung; von Adolf Bernhard Marx. 8th edition. pp. 436, 8vo. Leipzig, 1869. (Breitkopf & Härtel).

Des Tortues Fossiles conservés dans le Musée Teyler et dans quelques autres Musées; par F. C. Winckler. 152 pp., 8vo, 33 lithographic plates. Harlem, 1869. Die Vegetationsverhältnisse von Croatien; von Dr. August Nielreich. 8va Wien, 1868.

Mélanges Orthoptérologiques; par Henri de Saussure. II Fascicule. 145 pp. 4to, 2 plates. Genéve et Bale, 1869.

Über Thal- und See- Bildung. Beiträge zum Schweiz; von Prof. L. Rütimeyer. 96 pp., 4to. Archives du Musée Teyler. Vol. I, Fasc. 4. 2, 1869.

Verständniss der Oberfläche der
Basel, 1869.

Harlem, 1868. Vol. II, Fasc. 1,

Memoirs on the Bryozoa, by F. A. Smith. Mr. Smith, of Stockholm, has issued his important memoirs on the Bryozoa, published in the years 1864 to 1867, in an octavo volume. They are illustrated by many beautiful plates.

JOURNAL ACAD. NAT. SCI., PHILADELPHIA. Vol. VI, Part 4.-p. 303, New Unionidæ, Melanidæ, etc., chiefly of the United States; I. Lea.-p. 345, An Attempt to ascertain the Average Weight of the Brain in the different Races of Mankind; J. B. Davis.-p. 369, On Brevoortia; A. Wood.

PROCEEDINGS AMERICAN PHILOSOPHICAL Soc. Vol. XI, No. 81.-p. 3, Indian Sculpture; Boyd.-p. 4, The Maya Language; Brinton.-p. 15, Mylodon annectens; E. D. Cope.-p. 16, Cretaceous Tortoises; E. D. Cope.-p. 17, Philadelphia Life Tables; P. E. Chase.-p. 25, Notes on the Geology of Wyoming and Colorado Territories, No. 2; F. V. Hayden.-p. 57, The Geological Age and Equivalents of the Marshall Group; A. Winchell.-p. 83, Relics from Vera Cruz; J. Marston.-p. 85, Obituary Notice of Mr. Bancker; Cadwalader.-p. 91, Longitude of San Francisco; Davidson.-p. 92, Specimens of Silver Ore; Dubois.-p. 94, Periodicity of the Solar Spots; D. Kirkwood.-p. 103, Cosmical Relations of Light to Gravity; P. E. Chase. p. 107, Boring Records in the Anthracite Basin; P. W. Scheafer.—p. 111, Aurora of April 15.-p. 113, Rain Curves; P. E. Chase.-p. 114, The Arawak Vocabulary of Shultz; Brinton.-p. 117, New Mosasauroid Reptile; E. D. Cope.— p. 118, Human Osteology; H. Allen.

PROCEEDINGS BOSTON SOC. NAT. HIST., Vol. XII.—p. 1, Annual Report.-p. 78, The Crocodile in Florida; J. Wyman.-p. 78, On a Chick with Supernumerary Legs; E. Coues.-p. 83, American Lepidoptera, Geometrida; C. S. Minot.-p. 85. Male of Lemenitis Proserpina; C. P. Whitney.-p. 86, Observations on the Marsh Hare; E. Coues.-p. 93, Notice of a Cyclopean Pig; E. Coues.-p. 100, Notes on Beaver Dams; A. Agassiz.-p. 104, on the Habits of a few Echinoderms; 4. Agassiz. p. 108, On a New Species of Pedipes from Florida; R. E. C. Stearnsp. 109, Molluscan Fauna of New Haven, part I, Cephalopoda and Gasteropoda; G. H. Perkins.

TRANSACTIONS AMERICAN ENTOMOLOGICAL SOCIETY. Vol. II, Nos. 2, 3.-p. 115, On the Synonomy, etc., of certain species of American Lepidoptera; A. R. Grote.— p. 122, A new Hesperian; W. H. Edwards.—p. 123, Catalogue of Coleoptera from South Western Virginia; G. H. Horn.-p. 129, New species of Coleoptera from the Pacific District of the U. S.; G. H. Horn.-p. 141, Synopsis of the Scolytida of America North of Mexico; C. Zimmermann and J. L. Le Conte. p. 179, Descriptions of American Lepidoptera, No. 4; A. R. Grote and C. T. Robinson.-p. 207, On a Remarkable variety of Papilio Turnus, and Descriptions of two species of Diurnal Lepidoptera; W. H. Edwards.—p. 211, Catalogue of the described Tenthredinidae and Uroceride of N. A.; E. Norton.-p. 243, Synonymical notes on Coleoptera of the U. S., with descriptions of new species from the MSS. of the late Dr. C Zimmermann; J. L. Le Conte.-p. 260, Descriptions of two new species of Arotes; E. T. Cresson.-p. 261, Notes on American Tortricidae; C. T. Robinson. -p. 289, List of the N. A. species of Anthrophora, with descriptions of new species; E. T. Cresson.-p. 293, Notes on Cuban Hymenoptera, with descriptions of new species; E. T. Cresson.-p. 299, Biological Notes on Diptera; R. Osten Sacken.-p. 305, New species of Orthoptera; S. H. Scudder.-p. 307, Structural characters of Polyommatus Tarquinius; A. R. Grote.-p. 308, New genus of Noctinda allied to Dyops, with remarks on certain species of Agrotis; A. R. Grote. -p. 310, American Butterflies referred to the genus Charis by Doubleday; A. R. Grote and C. T. Robinson.-p. 311, Descriptions of certain species of Diurnal Lepidoptera found in the U. S.; W. H. Edwards.

APPENDIX. Note by Prof. YOUNG to his paper, Art. XXXVI, p. 370.-Having just received the volume of the Comptes Rendus of the French Academy of Sciences for the first half of the current year, I find that I have been anticipated by M. Faye in respect to the method of observing the contact of an opaque body with the disc of the sun by means of the spectroscope. At the session of Monday, January 11th, 1869, in a discussion upon the observation of the coming transit of Venus, he proposed essentially the same use of the spectroscope which I have described in the foregoing article.

It is unnecessary to say that until to-day I was not aware of the fact.

Hanover, Nov. 16, 1869.

INDEX TO VOLUME XLVIII.

Barker, G. F., notices of papers on phys- Comets of 1812 and 1846, Kirkwood, 255.
iological chemistry, 49.

Boston Soc. Nat. Hist., Proceedings of, Daubrée, Substances Minérales, etc. of,

DesCloizeaux, on transparent wolfram,||Geological survey of Ohio, 417.
137.

Descloizite of Wheatley mine, Smith,
137.

Delesse, Le metamorphisme des roches,
noticed, 138.

Diamonds in Oregon, 441.

Diatomaceæ, spectroscopic examination
of, 83.

Drift, western boulder, Andrews, 172.
Durangite, G. J. Brush on, 179.

E

Earthquake in N. England, 418.
Eastman, J. R., height of Kearsarge
Mountain, 439.

Eclipse, Solar. See Sun.
Edwards, W. H., butterflies of N. Amer-
ica, by, noticed, 144, 433.
Electricity, discharge of Leyden jar with

induction coil, Rood, 153.
Electric telegraph, manual of, by F. L.
Pope, noticed, 150.

Element, new, associated with Zirconium,
405.

Entomological correspondence of Harris,
noticed, 143.

Ethylates, potassic and sodic, 413.
Ethylene-sodium, new radical, Wanklyn,

Gabb, W. M., Paleontology of California,
noticed, 133.

Galvanic battery, Hough, 182.

GEOLOGY-

of Tennessee, by Safford, 416.
of Texas and Chihuahua, Kimball, 378.
Crinoidea, Cystidea, Blastoidea, Billings,
69.

Crinoidea, Meek and Worthen, 23.
Mosasauroid reptiles, Marsh, 392.
new fossil serpent, Marsh, 397.*
GEOLOGY-

Paleontology of geol. surv. of Cal. no-
ticed, 133.

Gould, B. A., statistics of Amer. Soldiers,
noticed, 149.

on solar eclipse, 434.
Gibbs, Wolcott, on action of alkaline ni-
trites upon uric acid and its derivatives,
215.

Chemical and Physical abstracts, by,
121, 401.

Gilman, W. S., Jr., on Aurora of April,

1869, 114.

Glaciers, cause of motion of, Croll, 273.

Johnson, S. W., on estimation of carbon-
ic acid, 111.

Jones, J. M., on nat. hist. of Bermudas,
Coralliaria, 143.

Gas, effect of mixture with atmospheric
air on illuminating power, Silliman |Jukes, J. Beete, obituary, 296.
and Wurtz, 40.

Geographical notes on earliest discoveries
in America, Stevens, 299, 437.
Geological reconnoissance of Louisiana,
Hilgard, 331.

survey of California, 151.
of Indiana, 138.

K

Kearsarge mountains, altitude of, East-
man, 439.

Kimball, J. P., on geology of Texas and
Chihuahua, 378.

Kingston, G. T., on Aurora at Toronto, 65.