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LORD S. G. OSBORNE'S DIATOMESCOPE, Post-free, 12s.
Nitella flexillis, with Anthericea. Archegonia, Is. 2d. post-free.
. ERNEST HINTON.
For Paraboloid, Is. 2d. post-free. 12, VORLEY ROAD, UPPER HOLLOWAY, LONDON, N.
(TWENTY YEARS WITH THE LATE E. WHEELER.)
CABINETS FOR MINERALS, FOSSILS, &C. 6 DRAWERS, 20 INCHES HIGH .. 21s. 8 DRAWERS, 26 INCHES HIGH .. 286. 10
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THE SHILLING KNIGHTAG THE SHILLINGBARONETAGE.
THE SHILLING HOUSE OF OMMONS.
SECOND-HAND MICROSCOPES AND OBJECTIVES. A large assortment by ROSS, BECK, COLLINS, SWIFT, and other first-class Makers, on Sale, very cheap
MICROSCOPIC OBJECTS in great variety. Spécialité Physiological and Pathological Tissues. 500 SECOND-HAND PHOTOGRAPHIC LENSES AND CAMERAS By ROSS, DALLMEYER, TENCH, VOIGTLÄNDER, and all other esteemed Makers. The Cheapest and Best Stock in Losra.
New Catalogues gratis on application. Purchases and Exchanges made. Instruments Repaired and Relacquered. SANDS & HUNTER, 20, CRANBOURNE STREET, LONDON.
VERTICAL SECTION NEW PREPARATIONS FIRST LEG OF HONEY
Apis MELLIFICA. Apis MELLIFICA.
Showing the Semi-circular WITHOUT PRESSURE. Showing Ovaries and all
Comb used for Internal Organs.
FRED. ENOCK, Cleaning the Antenna. 25. and 35., Post-free.
I$. &., Post-free. Opaque for Binocular. WOKING.
For Paraboloid. HOW AND CO.'S NEW “POCKET MICROSCOPE LAMP." Very convenient and portable, gives ample Illumination, has all necessary adjustments, is provided with a Cylindrical Case, and can be conveniently carried in the breast coat pocket; when charged
with sufficient Oil to burn for above 3:1 hours, weighs under 12 oz. Price 8s. 6d. Microscopists who are in the habit of exhibiting at the Meetings of their respective Societies and elsewhere.
should provide themselves with this little Lamp. MICRO-PETROLOGY, TYPICAL ROCK SECTIONS, 1/6 AND 2/- EACH. JAMES HOW & Co., 73, FARRINGDON STREET, LONDON.
STUDIES IN MICROSCOPICAL SCIENCE.
Edited by ARTHUR C. COLE, F.R.M.S., &c. VOL. III. will be commenced shortly. All correspondence connected with this Volume to be addressed to
J. G. HAMMOND & Co., 136 Edmund Street, Birmingham, from whom Prospectus can be obtained Now ready, VOL. I., containing 53 Chromo-Lithographed Plates, £1 11s. 64. ; or, accompanied by 52 Prepara
tions, in Cabinet, £4 145. 6d. And VOL. II., containing THE METHODS OF MICROSCOPICAL RESEARCH; SECTION I., ANIMAL HISTOLOGY:
SECTION II., BOTANICAL HISTOLOGY; and POPULAR MICROSCOPICAL STUDIES; with 38 CHROMO
LITHOGRAPHED PLATES, £IIIs. 6d. ; or, accompanied by 36 Preparations, in Cabinet, 44 45. Oui, NOTE.—The Sections of either Volume may be had separately.
All correspondence having reference to Vols. I. and 11, to be addressed to the EditorST. DOMINGO HOUSE, 53, Oxford Gardens, Notting Hill, W.
From whom all Particulars may be obtained. ** A. C, COLE AND SON'S Pathological, Physiological, Botanical, and general
Preparations and Diatoms, may be obtained of all the principal Opticians,
WATKINS AND DONCASTER, Naturalists and Manufacturers of Entomological Apparatus and Cabinets.
N.B.-For Excellence and Superiority of Cabinets and Apparatus, references are permitted to
distinguished Patrons and Colleges, &C. Plain Ring Nets, Wire or Cane, including stick, 1/8, 2/5, 2/3. Breeding Cage, 2/6, 4/-, 51-, and 7/6. Folding Nets, 3/9 and 4/6.
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most useful instruments for skinning, 10/6. Pocket Boxes, -76; corked both sides, -/9, 1/-, and 1/6.
Coleopterist's Collecting Bottle, with tube, 1/6, 1/8. Zinc Relaxing Boxes, -/9, 1/4, 1/6, and al-,
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(black). Botanical Cases, japanned, double tin, 1/6, 47, 57-,6/-,9/-. Entomological Pins, assorted or mixed, 1/- per oz. (white or Botanical Paper, 1/1, 1/4, 1/9, and 2/2 per quire. (Too heavy Glass Killing Bottles or Tubes ready for use, il-, 1/6.
for post.) Sugaring Lanterns, 2/6 to 10/
Insect Cases, imitation mahogany, 3/6 to 11/-, Sugaring Tin, with brush, 1/6, 2/..
(oz. Cement for replacing Antennæ, -76 per bottle. Mite Destroyer (not inflammable nor dangerous to use), 1/- per Forceps for removing Insects, 2/6 per pair. (Supplied to Store Boxes, 2/6, 4/-, 5/-, and 6/-.
Collectors all over the world.) Ditto, Book Pattern, 8/6, 9/6, and 10/6.
Cabinet Cork, 7 X 3t, best quality, 1/3 per dozed sheets. Setting Boards, flat or oval, i-in., -/6; it-in. -/8; 14-in., ./9 Pupa Diggers, 1/6, 21- Insect Lens, 1/6 to 8/-,
z-in., -/10; 3t-in. 1/-; 3-in., 1/2; 3t-in., 1/4; 4-in., 1/6; Glass Top Boxes, per dozen, 1/8, al., 2/6.
4t.in., 1/8; 5-in., 1/10. Complete set of 14 boards, 10/6. Egg Drills, -/3. Setting Houses, 9/6 and 11/6; corked back, 14/6.
Metal Blow-pipes, -17. Zinc Larva Boxes, 9/-, 1/,
| Setting Needles, 6d. per box. All Articles enumerated are kept in stock, and can be sent immediately on receipt of order. For Sale, a large Assortment of Ova and Pupæ of both British and Foreign Butterflies and Moths.
CABINETS.--Special Show Room.
Pose Minerals and Dried
889. Plants, Fossils, &c. 4 Drawers .. .. 14/- .. .. 12/6 .. .. 10/6
8 Drawers .... 32/- .. .. 30/- .... 23/6 , .. .. 18/• ... 16/6 ... 15/
10 , .. .. 48/- .... 42/4 ... 40/A LARGE STOCK OF INSECTS AND BIRDS' EGGS.
Birds, Mammals, &c., Preserved and Mounted by First-class workmen. 36, STRAND, W.C. (Five DOORS FROM CHARING CROSS).
CHAS. COLLINS, JUNR. NEW SERIES
NEW SERIES Micro-Inaturalist, (Now Ready). Bristol House, Harlesden, N.W.
(Now Ready). Series No. 5 of my "Special” Micro-Slides consists of the Six following carefully prepared Specimens, mounted without pressure, and Illustrating the Anatomy of the Honey Bee (Apis mellifica): 1. Trophi
1 5. Wings, showing hooklets.
The Set, 6/6. Single Slides, 1/2. Post Free,
and each series is sent out in a neat cloth racked bor. A full Detailed ] List of all other Series, together with a Complete List of Mounting Materials and Apparatus,
Free on application. MICRO-SLIDES FOR SCIENCE CLASSES. Mr. PIFFARD'S PATENT COUNTER-SUNK SLIPS now on Sale.
Two sizes are ready, 3-16 and 5-8, at 6s. per dozen. Prasiola Crispa, portion of Thallus, beautiful arrangement of Chlorophyl granules, 1s. Teleutospores of Puccinia graminis, 1s. Spores and Elaters of Aneura Pinguis (Jungermanniaceæ) 1s. Stained and Isolated Conidia-bearing Hyphæ, of a Micro-fungus, probably Polyactis cana, 1s. Lecanora Tartareat, vert. sect. of Apothecium, showing Asci, ls. Atrichum Undulatum, vert. sect., Male Perichtum and Antheridia, ls. Fasciated Stems of Strawberry, Sweet Pea, Tropæolum and Thistle, ls, each.
REMITTANCE WITH ORDER. ENLARGED CATALOGUE READY, POST FREE. B. PIFFARD, Hill House, Hemel Hempstead, Herts. SCHWEITZER’S COCOATINA.
Anti-Dyspeptic Cocoa or Chocolate Powder. GUARANTEED PURE SOLUBLE COCOA OF THE FINEST QUALITY. The FACULTY pronounce it'the most nutritious, perfectly digestible Beverage for BREAKFAST, LUNCHEON, or Supper, and invaluable for
Invalids, and Young Children.'
Cocoas thickened yet weakened with arrowroot, starch, &c., and in reality cheaper than such mixtures.
THE GRESHA M
Annual Income ... ... ... ... ... ... ... ... ... ... 2685,369
BONUS YEAR, 1885. POLICIES effected before the ist July 1885 on the profit tables, with annual premiums, will participate in the Bonus to be declared next year, in the manner prescribed by the regulations of the Society,
** JOSEPH ALLEN, Secretary. Prospectus, Reports, and Proposal Forms can be obtained on application to the Society's Agents and Branch Offices, or to
JOSEPH ALLEN, Secretary.
NORTH BRITISH AND MERCANTILE INSURANCE COMPANY
INCORPORATED BY ROYAL CHARTER AND SPECIAL ACTS OF PARLIAMENT. Authorised Capital, £3,000,000. Subscribed Capital, £2,500,000. Paid-up Capital, £125,000. Chairman-JOHN WHITE CATER, Esq.
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FIRE DEPARTMENT. The Net FIRE FUNDS, irrespective of the Paid-up Capital, now amount to £1,597,295 9s. 6a.
LIFE DEPARTMENT. The LIFE FUND now amounts to £3,458,595 18s. 9d. The ANNUITY FUND now amounts to £536,066 8s, ed. THE PRINCIPLES on which this Company is conducted combine the system of Mutual Assurance with the safety
1 of a large Protecting Capital and Accumulated Funds, and thus afford all the facilities and advantages which can prudently be offered by any Life Assurance Office.
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Incorporated in the year 1847 under Act 7 and 8 Vict., cap. 110, and further empowered by Special Act 15 Vict., cap. 53. Accumulated Fund ........£1,028,215 | Profits already appropriated . ... £847,000 Annual Income, nearly ...... £200,000 | Claims Paid ........... £1,230, 133
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EDWIN BOWLEY, Secretary.
MEMOIR OF GENERAL JOHN BRIGGS,
of the Madras Army. With Comment on some of his Words and Work. By Major EVANS BELL. With a Portrait. Royal 8vo.,
cloth extra, 7s.6d. LONDON: CHATTO AND WINDUS, 214, PICCADILLY, W.
OBJECTS FOR THE MICROSCOPE,
Fungus of Favus Achorion Schoenleinii..
.. Liver Spots (Chloasma) Mycrosporon Furfur
.. 16.9d. Section of Spine of Echinus
ls. Bd. Acarus of Itch, male and female.. .
Section of Brighton Chalk-shells and organic remains in situ
18. od. Ditto Egg and Larva, on one Slide
Ringworm of Head, showing its effect on the hair ..
1s. od. Section through Finger and Nail of Monkey..
Human Flea (Pulex irritans), male and female on one
2s. Six Slides to illustrate the anatomy of the Bunter Prawn, including
Anatomy of a Leaf, 9 pieces on one slide ..
2s, od Eyes and Kostrum, Squame, Antennules, Tail Plates, Ambulatory
5 Examples of Blood on one slide, from Man, B
* 5s, feet and Swiinmerets, a most valuable set .. .. .. .. 81
Indian Mosquito .. .. ..
.. 38. The STOKES-WATSON SPARK APPARATUS, to show the combustion of Metals by the Electric Spark with the Microscope or Micro-Spectroscope, as exhibited before the Royal Society. Price £2 2s. or complete with Coil and Battery, £3 10s.
40,000 First-class Specimens, illustrative of every Branch of Study. WATSON & SONS' 1-15th in. HOMOGENEOUS IMMERSION OBJECTIVE, £5 5s.
*** This Glass is unsurpassed at the Price. NEW CLASSIFIED LIST OF OBJECTS (Including the Stock of Mr. E. Wheeler, late of Holloway). ILLUSTRATED CATALOGUE OF MICROSCOPES AND APPARATUS.
Either of the above sent Post Free to any part of the world on application to
APPARATUS; Late of He
W. WATSON & SONS, 313, HIGH HOLBORN, LONDON, W.C.
Opticians to Her Majesty's Government.
GRAPHIC MICROSCOPY. Ceum of Compas
NOV 16 1942
HE cirripeds, or prolonged into a stem-like flexible stalk, in the other
barnacles, in their fixed in a shelly pyramid.
subjected to microscopical examination, it reveals
tough texture, processes interlapping, and when reaching the possessing voluntary movement, and surmounted or summit so delicately fine as to become a mere slit of tipped with a conical articulated shell containing the exquisite adjustment for the extrusion of the cirri, or animal, from the apex of which emerge the “cirri.” curly filamentous appendages; these flash out, for Of the same family, although so unlike in appearance the collection of food and purposes of aeration, and are the Balanidæ, popularly known as “acorn shells,” when as suddenly retracted the delicate edges of this sessile, the creature included in a compact although sensitive operculum hermetically close the aperture, somewhat moveable calcareous domicile, firmly at- and the creature within. The growth of these lamitached to the surface of constantly submerged rocks, nated plates of shell is seen by perpendicular and transand the bottoms of ships, enjoying, as the vessel verse ridges, showing expansion in every direction. drives through the seas, the luxury of a vagrant life, The base of fixture is a flat foundation of accumulated and with its singular and well-adapted casting net, calcareous secretions, and in specimens taken from collecting abundant food from the scums and shoals of the hulls of ships, more or less incorporated with the microscopic organisms. The close relationship between paints and deadly oxides of metals used to discourage the Lepadidæ, with their long flexible stems, and their accumulation. But balani generally succeed in the Balanidæ in their shelly boxes, is detected in the eluding these ingenuities. perfect identity of the larval free swimming condition. If a shell be broken into, near the base, inside, At this point their similarity is manifest. When the above the floor of attachment (the point of greatest perfection of this state is attained, the little creature resistance), a part may be seen corrugated, and having seeks a point of attachment : the bottom of a vessel, | a columnar appearance; if a slightly oblique horizontal floating substances, or the solid rock, and fixing itself thin section be cut through this point, the apparently by an outpouring of glutinous cement, in the one case uninviting fragment reveals a structure of adaptability
No. 247.— JULY 1885.