96 NATURE 
[ Mov. 18, 1869 
JOEEN 
WHELDON’S CATALOGUE 
or 
3,000 WORKS ON NATURAL HISTORY AND GENERAL SCIENCE. 
STIX STAMPS. 
Microscopy.—Quekett’s Histology. 7s. 6d. 
Microscopy.—Quekett’s Microscope. 
Cryptogamia.—Berkeley’s Botany. 
Published at ars. 
Fungi.—Berkeley’s Fungology. 
5s. 6d. 
£1 558. 
Coloured Plates. 
Mosses, by Berkeley. Plates Coloured. 
17s. 6d. 
Miscroscopy.—Transactions and Journal 
Complete to 1868. 16 Vols. half morocco. 14@. 14s. 
Entomology.—_Newman’s British Moths. 
Engravings. 17S [Fust published. 
\ericultural Journal. Thirty Vols. New. 
Half green morocco. 62 6s. 
Entomology.—Janson’s Beetles. 7s. 6d. 
Published at r/. 1s. 
Baird’s Dictionary of Natural History. 
Profusely Illustrated. 5s. 6d. Published at 18s. 
Bentham’s Hand-Book of British Flora. 
With an Engraving and Dissection to every Species. 2 Vols. 2/. 125. 6d. 
Published a 1867. 
37, 10s. 
| Algze.—Harvey’s Australian Sea-Weeds. 
| 4 Vols imperial 8vo. 52. Published at 72. 15s. Plates, Coloured. 
Transactions. and 
52. 55. 
Horticultural 
imperial 8vo. 19 Vols. new half morocco. 
4to. 
Mosses.—Wilson’s Bryologia Britannica, 
with the 444 Dried Specimens. Arranged by himself. 67. 6s. 
Annals of Natural History. Complete, 36 
New, half calf, gilt. 252. 
Vols. 
Lord’s Naturalist in Vancouvers Island. 
| 7s. 6d. 2 Vols. Published at rZ. 4s. 
Philosophical Magazine, by Tilloch and 
Taylor, 1798—1862. 140 Vols. Fine copy, 252. 
Repertory of Arts from the Commencement 
to its Conclusion, with Carpmel’s Patent Cases and Indexes. 142 Vols. 307. 
Philosophical Transactions to 1864. 
Vols. half roan. 
I27 
Fine Set, with Lowthorp and Martin’s Abridgment to 
1750. 502. 
Transactions of the Royal Society of 
Edinburgh to 1867. 24 Vols. New, half calf, 207. 
58, GREAT QUEEN STREET, LINCOLNS’ INN FIELDS, LONDON. 
WILLIAM LADD, 
Ir & 12, BEAK STREET, REGENT STREET, W. 
(Scientific Instrument Maker by Appointment to the Royal Institution of Great Britain,) 
‘ 
Manufactures Scientific Instruments of every description, including 
MICROSCOPES, TELESCOPES, SPECTROSCOPES, 
INDUCTORIUMS, 
And all Instruments for Philosophical research. 
CATALOGUES FORWARDED FOR TWO STAMPS. 
BRAGG’S VEGETABLE CHARCOAL 
or PURE CARBON BISCUITS, a nutritious, pleasant, and healthful diet, 
which has produced great benefit and positive relief to thousands of sufferers 
from indigestion, bile, acidity, foul breath, dyspepsia, heartburn, worms, &c 
There is medical testimony to its beneficial effect in these complaints —Sold 
in tins, 1s., 28., 4s., and 8s. each, by all chemists, and by the manufacturer, 
Jai BRAGG y, 14 ‘late 2), Wigmore Street, Cavendish Square. 
THE MINIATURE SPECTROSCOPE. 
SCHOOL OF CHEMISTRY, 
| 20, GREAT MARLBOROUGH STREET, 
| LONDON, W. 
| Dinecrep ny ARTHUR VACHER, 
GEOLOGY AND CONCHOLOGY. 
This Instrument will show many of Fraunhofer's Lines, the Bright Lines of | 
the Metals and Gases, and the Absorption Bands in Coloured Gases, Crystals, 
or Liquids. 
Price, with live Prisms .. -4I 0 0 
» with Achromatic L: enses\ fadjustable: slits 22 0 
These 
£2 125 
JOHN BROWNING, Optical and Physical Instrument eS to the Royal 
Observatory, &c. &c. 111, Minories, London, E. 
Instruments can be adapted to the Microscope; price £1 2s. and 
6d. New Illustrated Catalogue of Spectroscopes for 13 Stamps. 
Collections of Marine, Land, and Freshwater Shells, Tertiary, Cretaceous, 
Oolite, Liassic, Carboniferous, and Silurian Fossils, accurately named. 
Price from 7s. 6d. each series. 
THOMAS D. RUSSELL, 
BRITISH NATURAL HISTORY COLLECTIONS, 
Whittington Club, Arundel Street, London, W.C 
| 
| 
| Full Particudars and Catalogue Post-free. 
Printed by R Cuay, 
iSons, & TAYLOR, at 7 = mt 8, Teel: Street Hill, in the City of London, and published by Macmittan & Co., 
63, Bleecker Street, New York. —Tuurspay, November 18, 1869. 
