J 
7 
DECEMBER 25, 1913] 
LANTERN SLIDES. 
Large Stock for Sale or Hire of 
NATURE PHOTOGRAPHS. 
4 British Birds, Flowers, and Insects. 
GEOLOGICAL PHOTOGRAPHS. 
Scenery —Specimens— Photomicrographs. 
ASTRONOMY. 
Slides made to order from Negatives, Prints, 
Drawings, &c. Prompt Deliveries. 
FLATTERS & GARNETT, LTD., 
309 Oxford Road (“gees<::"*), Manchester. 
Sales by E#uction, 
STEVENS’ AUCTION ROOMS.  Esrp. 1760. 
A Sale by Auction is held EVERY FRIDAY 
at 12.30, which affords first-class opportunities for the disposal o1 
urchase of SCIENTIFIC AND ELECTRICAL APPARATUS, 
iicronctigea and Accessories, Surveying Instruments, Photographic 
Cameras and Lenses, Lathes and Tools, Cinematographs and Films, 
and Miscellaneous Property. 
Catalogues and terms for selling will be forwarded on application to 
Mr. J. C. TEWVENS, 
38 KING STREET, COVENT GARDEN, LONDON, wW.c. 
METEORITES 
Meteorie Iron and Stones in all sizes and prices. 
Apply stating requirements, &c., to 
JAMES R. GREGORY & CO,, 
MINERALOGISTS, &c., 
1389 FULHAM ROAD, SOUTH KENSINGTON, S.W. 
Telegrams: ‘‘ Meteorites,” London. Telephone: 2841 Western. 
LIVING SPECIMENS FOR 
THE MICROSCOPE. 
Volvox, Spirogyra, Desmids, Diatoms, Amceba, Arcella, Actinospherium, 
Vorticella, Stentor, Hydra, Floscularia, Stephanoceros, Melicerta, and many 
other specimens of Pond Life. Price rs. per Tube, Post Free. Helix 
pomatia, Astacus, Amphioxus, Rana, Anodon, &c., for Dissection purposes. 
THOMAS BOLTON, 
25 BALSALL HEATH ROAD, BIRMINGHAM. 
(Smee SS Se es 6 2 SS ee ee 
MARINE BIOLOGICAL ASSOCIATION 
OF THE UNITED KINGDOM. 
THE LABORATORY, PLYMOUTH. 
The following animals can always be supplied, either living 
or preserved by the best methods :— 
Sycon; Clava, Obelia, Sertularia; Actinia, Tealia, Caryophyllia, Alcy- 
onium; Hormiphora (preserved); Leptoplana; Lineus, Amphiporus, 
Nereis, Aphrodite, Arenicola, Lanice, Terebella; Lepas, Balanus, 
Gammarus, Ligia Mysis, Nebalia, Carcinus; Patella, Buccinum, Eledone, 
Pectens Bugula, Crisia, Pedicellina, Holothuria, Asterias, Echinus, 
Salpa (preserved), Scyllium, Raia, &c., &c. 
For prices and more detailed lists apply to 
NATURE 
clxxv 
WATKINS & DONCASTER, 
Naturalists and Manufacturers of 
CABINETS AND APPARATUS 
FOR COLLECTORS OF INSECTS, BIRDS' EGGS AND SKINS 
MINERALS, PLANTS, &c. 
N.B.—For Excellence and Supetiority of Cabinets and Apparatus, 
references are permitted to distinguished patrons, Museums, Colleges, &c. 
A LARGE STOCK OF INSECTS, BIRDS’ BGGS AND SKINS. 
SPECIALITY.—Objects for Nature Study, 
Drawing Classes, &c. 
Birds, Mammals, &e., Preserved and Mounted by First-class 
Workmen true to Nature. 
All Books and Publications (New and Second-hand) on Insects, 
Birds’ Eggs, &c., supplied. 
86 STRAND, LONDON, wW.C. 
(Five Doors from Charing Cross.) 
FOUOLL OATALOGUE POST FREE. 
Minerals, Rocks, Fossils, Metallic 
Ores, Rough Precious Stones, &c. 
A Large Assortment from all parts of the world always on view, 
and at all prices. Inspection invited. 
Crude Mineral for Chemistry Students and Technical Schools. 
Single Crystals and Teaching Specimens in Great Variety. 
RICHARDS’ SHOW ROOMS. 
PRICE LISTS FREE. 
48 Sydney Street, Fulham Road, South Kensington, London, $.W. 
SKELETONS & SKULLS ferere* 
Specimens and Preparations for Teaching 
BIOLOGY & ZOOLOGY 
and for Museums. 
Lists on Application. 
EDWARD GERRARD & SONS 
Osteologists and Taxidermists, 
NATURAL HISTORY STUDIOS 
6I College Place, 
Camden Town, London. 
A Small Lot of the New and Rare Indian 
WEINE RAIS 
WINCHITE, TILASITE, 
and 
HOLLANDITE 
Now on Sale at 
RUSSELL «x SHAW, 
38 Gt. James Street, Bedford Row, London, W.C. 
Biological Laboratory, Plymouth. THE DIRECTOR 
NOTICE,.—Advertisements and business letters for ‘‘ Nature” should be addressed to the Publishers; Editorial Come 
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