NOVEMBER 27, 1913] 
NATURE 
CXXXV 
LANTERN SLIDES. }| WATKINS & DONCASTER, 
Large Stock for Sale or Hire of 
NATURE PHOTOGRAPHS. 
British Birds, Fiowers, 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 (“peests.*), Manchester. 
ES FS ae SE ae 
_ Sales by FHuction. 
STEVENS’ AUCTION ROOMS. Estp. 1760. 
A Sale by Auction is held EVERY FRIDAY 
at 12.30, which affords first-class opportunities for the disposal o: 
urchase of SCIENTIFIC AND ELECTRICAL APPARATUS, 
Mictoscogak 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. STEVENS, 
38 KING STREET, COVENT GARDEN. LONDON, w.c. 
FOSSIL COLLECTION. 
JAMES R. GREGORY & CO. having purchased the well-known 
Collection of Silurian and Coal Measure Fossils. formed by 
the late Henry Johnson, of Dudley, are prepared to sell the 
Collection either separately or as a Whole. Apply to 
JAMES R. GREGORY & CO., 
Mineralogists, €c., 
139 FULHAM ROAD, SOUTH KENSINGTON, S.W. 
Telephone: 2841 Western. Telegrams: “‘ Meteorites, Tondou.” 
LIVING SPECIMENS FOR 
THE MICROSCOPE. 
Volvox, Spirogyra, Desmids, Diatoms, Amceba, Arcella, Actinosphzrium, 
Vorticella, Stentor, Hydra, Floscularia, Stephanoceros, Melicerta, and many 
other ‘specimens of Pond Life. Price 1s. per Tube, Post Free. Helix 
pomatia, Astacus, THOM Rana, Anodon, &c., for we purposes, 
HOMAS BOLTO 
25 BALSALL HEATH ROAD, ee aaenAM. 
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 
Riological Laboratory, Plymouth. 
THE DIRECTOR 
Naturalists and Manufacturers of 
CABINETS AND APPARATUS 
FOR COLLECTORS OF INSECTS, BIRDS' E@GS AND SKINS, 
MINERALS, PLANTS, &c. 
N.B.—For | Excellence and Superiority of Cabinets and Apparatus, 
references are permitted to distinguished patrons, Museums, Colleges, &c. 
A LARGE STOCK OF INSECTS, BIRDS' EGGS AND SKINS. 
SPECIALITY.—Objects for I 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, W.C. 
(Five Doors aoa Charing Glens 
OATALOGUE POST FREE, 
FOLL 
ALL KINDS OF BRITISH AND FOREIGN 
Mineral Specimens, 
COMMON MINERAL ORES, and 
CHOICE CRYSTALLIZED SPECIMENS 
at ALL PRICES on view at 
RICHARDS’ SHOW ROOMS. 
Note new Address :— Lists free. 
48 Sydney Street, Fuiham Road, South Kensington, London, $.W. 
SKELETONS & SKULLS ani 
Specimens and Preparations for Teachinz . 
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 
WEI NE RAILS 
WINCHITE, TILASITE, 
and 
HOLLANDITE 
Now on Sale at 
RUSSELL a SHAW, 
38 Gt. James Street, Bedford Row, London, W.C. 
munications to the Editor. 
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