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HARDWICKE'S SCIENCE-GOSSIP. HENRY CROUCH'S NEW STUDENT'S BINOCULAR MICROSCOPE.
HENRY CROUCH, Barbican Optical Works, 66, Barbican, London, E.C. MICROSCOPICAL SPECIALITIES.
Sixteen Specimens of Soundings collected by the Challenger' Expedition, 1s. 3d. each, post free. Direct from the late Sir Wyville Thomson. See following extract:-“I have sent none of the Challenger' Materials to any one but yourself.”—Bonsyde, Linlithgow, N.B., June 7th, 1877.
J. T. NORMAN, OPTICIAN, &c., 198, CITY ROAD, LONDON, E.C. Established 1848. Prize Medal and Certificates for Excellence of Manufacture. Micro Troughs, Tanks, Cells, &c., made to any size and Shape. Largest Selection of Typical Rock Sections in London, all correctly named, is. 6d. each, post-free.
IN PREPARATION. A NEW BOOK BY THE EDITOR OF “SCIENCE-GOSSIP.” OUR COMMON BRITISH FOSSILS,
AND WHERE TO FIND THEM. By J. E. TAYLOR, Ph.D., F.L.S., &c., Author of “The Sagacity and Morality of Plants." With numerous
Illustrations. Crown 8vo, cloth extra, 7s. 6d.
LONDON : CHATTO AND WINDUS, PICCADILLY, W. THE BEST REMEDY FOR INDIGESTION.
COW BOOK BY MI PREPARATorrecily named color de este
Are confidently recommended as a simple but certain Remedy for Indigestion, which is the cause of nearly all the diseases to which we are subject, being a medicine so uniformly grateful and beneficial, that it is with justice called the “Natural Strengthener of the Human Stomach.” “Norton's Pills ” act as a powerful tonic and gentle aperient; are mild in their operation, safe under any circumstances, and thousands of persons can now bear testimony to the benefits to be derived from their use, as they have been a never-failing Family Friend for upwards of 50 years. Sold in Bottles at is. Id., 25. 9d., and us. each, in every Town in the Kingdom.
CAUTION. Be sure to ask for “ NORTON'S PILLS” and do not be persuaded to purchase an imitation.
DR. ROOKE'S ORIENTAL PILLS & SOLAR ELIXIR.
THESE WELL-KNOWN FAMILY MEDICINES have had a continually increasing sale throughout the United Kingdom and the British Colonies since their introduction in 1836, and are especially noted for their STRENGTHENING and RESTORATIVE Properties; hence their invariable success in the RELIEF and CURE of INDIGESTION,
PULMONARY CONSUMPTION, LIVER COMPLAINTS,
GOUT, SCROFÜLA, BRONCHITIS,
GENERAL DEBILITY, AND ALL DISEASES OF THE NERVOUS SYSTEM, Whether arising from a sedentary mode of life, unhealthy occupation, insalubrious climate, or any
The ORIENTAL PILLS AND SOLAR ELIXIR Are prepared only by CHARLES ROOKE, M.D., SCARBOROUGH. The PILLS are sold in boxes,
at is. 1 d. and 4s. 6d. each ; the ELIXIR in Bottles at 45. 6d. and ris, each, duty included. Around each Box and Bottle are wrapped Directions for the Guidance of Patients in all Diseases.
DR. ROOKE'S HANDY POCKET-GUIDE TO HEALTH
FULL OF PLEASING ILLUSTRATIONS AND USEFUL INFORMATION, 88 PAGES. This Book may be obtained from any PATENT MEDICINE VENDOR, or POST FREE
from Dr. ROOKE, Scarborough, England, on receipt of PENNY POSTAGE STAMP.
CROSBY'S COUGH ELIXIR
Is the leading Medicine of the day, and is specially recommended by several eminent Physicians. It has been used with the most signal success for Asthma, Bronchitis, Consumption, Coughs, Influenza, Consumptive Night Sweats, Spitting of Blood, Shortness of Breath, &c., and is a most valuable adjunct to Dr. ROOKE's Medicines in all affections of the Throat and Chest. ' CROSBY'S BALSAMIC COUGH ELIXIR is sold everywhere, by all Chemists and Patent Medicine Vendors at the following prices :-1s. 11d., 1s. 9d., 4s. 6d., and 11s. each Bottle. A great saving is effected by purchasing the large Bottles. Full Directions with each Bottle.
LONDON : PRINTED BY WILLIAM CLOWES AND SONS, LIMITED, STAMFORD STREET AND CHARING CROSS
(TWENTY YEARS WITH THE LATE E. WHEELER.) E. H. begs to inform his friends and the Scientific World that he has commenced business at the above address, and from his long experience with Mr. WHEELER, he will be enabled to submit to their notice a choice selection of newly-mounted Objects in all branches of Nature, at the lowest prices.
LORD S. G. OSBORNE'S DIATOMESCOPE, Post-free, 12s.
See “ English Mechanic,” August 22nd, page 561.
Geologists' Hammers, &c.
CLOSE TO THE NEW GENERAL POST OFFICE.
MICROSCOPICAL SPECIALITIES, ILLUSTRATING THE GROWTH, REPRODUCTION, AND STRUCTURE OF PLANTS. Diatoms mounted in monobromide of Naphthaline .... 1/- and 1/6 each. | Vaucheria in fruit, Batrachospermum and 1/- per slide Pollen grain of Enothera emitting tube ................ 1/1 each.
Pediastrum .............. V.S. of Fertilized Ovule of Mallow .....
Spirogyra in conjugation, stained and mounted T.S. of Stem and Leaf of Nepenthes, double-stained .... 1/
without contraction ...................... 1/6 Specially prepared illustrations of Sachs' and Thome's Textbooks of Botany, being copies of Figures in those works. All Post-free.)
CHAS. V. SMITH, CARMARTHEN. (Lists on Application. 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 London.
New Catalogues gratis on application. Purchases and Exchanges made. Instruments Repaired and Relacquered. SANDS & HUNTER, 20, CRANBOURNE STREET, LONDON. NEW PREPARATIONS This Insect is without doubt
one of the most beautiful THE MARSH FLY.
when examined under polarA Magnificent preparation for
ised light. Every muscle can the Polariscope or ParaboWITHOUT PRESSURE.
be distinctly seen in the head, loid.
tongue, thorax, abdomen and 35. Post-free.
legs, besides showing the
striated muscular fibres, WOKING. 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 31 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 21- EACH. JAMES HOW & Co., 73, FARRINGDON STREET, LONDON. Sole Maker of the Registered
MAGIC LANTERN & SLIDES BRIDGEMAN TRIPLE LANTERN ;
FOR PRESENTS, the Portable LUKE BI-UNIAL;
From 7s. Bd.
Dissolving View Mr. MALDON'S TRIPLE LANTERN, LANTERNS. used by him nightly with great
NEW SLIDES. success.
New Illustrated SPECIAL SHOW ROOM,
Catalogue Gratis, 406, STRAND.
post-free to all
parts. Five Hundred Slides, illuminated
by gas, for Selection.
d. H. STEWARD, 406 & 66 STRAND, 456 WEST STRAND, 54 CORNHILL, LONDON.
HARDWICKE'S SCIENCE-GOSSIP. 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.
including stick, 1/8, 214, 2130
Plain Ring Nets, Wire or Cane, including stick, 1/8, 2/-, 2/3. Breeding Cage, 2/6, 4/4, 5/-, and 7/6.
Taxidermist's Companion, i.e. a pocket leather case, containing Umbrella Nets, 7/6 (self-acting).
most useful instruments for skinning, 10/6. Pocket Boxes, -/6; corked both sides, -/9, 1/-, and 1/6.
Coleopterist's Collecting Bottle, with tube, 1/6, 1/8. Zinc Relaxing Boxes, -/9, 1/5, 1/6, and 2/2
Ditto, Tin Boxes, 1/6. Ditto, large size, with strap, 61-.
Ditto, Japanned Pocket Case, fitted with 26 tubes, 5/.. Nested Chip Boxes, 4 dozen, -/8.
(black). Botanical Cases, japanned, double tin, 1/6, 4/5, 575,6/-,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, 3/-.
(oz. Cement for replacing Antennze, -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 31. best quality, 1/3 per dozen sheets. Setting Boards, flat or oval, i-in., -/6; it-in.-/8; 14-in., -19 Pupa Diggers, 1/6, 2/. Insect Lens, 1/6 to 8/-.
2-in., -/10; at-in. 1/- ; 3-in., 1/2; 3t-in., 1/4; 4-in., 1/6; Glass Top Boxes, per dozen, 1/8, 2/-, 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/-, 11
| 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.
For Minerals and Dried
Plants, Fossils, &c. 4 Drawers .... 14/- .. .. 12/6 ... 10/6
8 Drawers .... 32/- .... 30/- ... 23/6 „ .. .. 18/- .. .. 16/6 .. .. 15/
10 , .. .. 48/- .... 42/ ... 40/A LARGE STOCK OF INSECTS AND BIRDS' EGGS.
Birds, Mammals, &c., Preserved and Mounted by First-class workmen.
and Dissolving Views, &c.
Phantasmagoria Lantern, with 31-inch Condenser, will show a disc 10 feet in
diameter, with Fountain Solar Argand Lamp, suitable for Schools or Lecturers,
£2 17s. 6d. Pair of Ditto, arranged for Dissolving Views, in Case, complete, £7. A New Portable Lantern, Burning Paraffine Oil, with Patent Double Wick Lamp, and 31-in. Condenser, £3 3s. Od., or with Triple Wick, £3 8s. Od.
PHOTOGRAPHED SLIDES FOR THE ABOVE.
Moving Slide and Chromotrope, from 155. to 40s.
CATALOGUES FREE BY POST.
MICRO-SLIDES FOR SCIENCE CLASSES.
Mr. PIFFARD'S PATENT COUNTER-SUNK SLIPS are now on Sale.
Two sizes are ready, 3-16 and 5-8, at 6s. per dozen. They are thus described in the Fournal of the Royal Microscopical
Society, August, 1884
"PIFFARD'S SLIDES.-Mr. B. Piffard has patented a slide, which is made by forming with a diamond a round recess in an ordinary slide.' In this the object is placed, and covered with thin glass. The upper surface of the slide is thus perfectly smooth, the cover-glass being even with the slide. There is no danger of the cover-glass and object being knocked off; and the recess causes a very beautiful diffusion of light."
REMITTANCE WITH ORDER ENLARGED CATALOGUE READY, POST FREE, B. PIFFARD, Hill House, Hemel Hempstead, Herts.
Possessing all the Properties of the finest Arrowroot,
BROWN AND POLSON'S CORN FLOUR
Is a Household Requisite of Constant Utility FOR THE NURSERY, THE FAMILY TABLE, AND THE SICK ROOM. NOTE.-Unlike many others, this Corn Flour bears the Name of its Manufacturers, who offer the
guarantee of their long-established reputation for its uniformly Superior Quality.