NovEMBER 13, I913]| 
NATURE 
CXill 
Large Stock for Sale or Hire of 
NATURE PHOTOGRAPHS. 
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 (°prcsteit’), Manchester, 
Sales by #uction, 
j STEVENS’ AUCTION ROOMS. Estp. 1760. 
A Sale by Auction is held EVERY FRIDAY 
at 12.30, which affords first-class opportunities for the disposal on 
urchase of SCIENTIFIC AND ELECTRICAL APPARATUS, 
ie ftecien 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, 
28 KING STREET. COVENT GARDEN. LONDON. W.C. 
METEORITES 
Meteorie Iron and Stones in all sizes and prices. 
Apply stating requirements, &c., to 
JAMES R. GREGORY & CoO,.,, 
MINERALOGISTS, &c., 
189 FULHAM ROAD, SOUTH KENSINGTON, S.W. 
Telegrams: ‘‘ Meteorites,” London. Telephone: 2841 Western. 
LIVING SPECIMENS FOR 
THE MICROSCOPE. 
__ Volvox, Spirogyra, Desmids, Diatoms, Amceba, Arcella, Actinospbzrium, 
Vorticella, Stentor, Hydra, Floscularia, Stephanoceros, Melicerta, and many 
‘other specimens of Pond Life. Price 1s. per Tube, Post Free. Helix 
‘pomatia, Astacus, Amphioxus, Rana, Anodon, &c., for Dissection purposes. 
THOMAS BOLTON, 
25 BALSALL HEATH ROAD, BIRMINGHAM. 
i a me 
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, Caryopbyllia, 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 
Biological Laboratory, Plymouth, 
‘ THE DIRECTOR 
4 
munications to the Editor. 
7 eer Sar 
Yearly PF ae ie oie mm .8)'0 
Half-yearly (26 Numbers) 0 14 6 
Quarterly (1s Numbers)... oO 7 6 
First Two Lines in Columa ... 0 26 
Per Line after... ae Py a ae 0 
One Sixteenth Page, or Eighth Col. 0 10 0 
One Eighth Page, or Quarter Col... 0 18 
NET Se a FOR ADVERTISEMENTS. 
amend 
LANTERN SLIDES. }| WATKINS & DONGASTER. 
Naturalists and Manufacturers of 
CABINETS AND APPARATUS 
FOR COLLECTORS OF INSECTS, BIRDS’ EGGS 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 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 from Charing Cross.) 
FOLL CATALOGUE 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. 
Note new Address :— Lists free. 
48 Sydney Street, Fulham Road, South Kensington, London, $.W, 
SKELETONS & SKULLS 
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. 
Collections of British and Foreign 
MINERALS, ROCKS, FOSSILS. 
25 Specimens, 5/6; 50 do., 10/6; 100 do., 21/-; 200 do., 42/-. 
20 Coal Measure Rocks and Fossils, 12/6; do., larger, 15/-. 
In Polished Deal Boxes. 
Inspection invited of a large stock of Minerals, Rocks, Fossils, ana 
Microscopic Objects. Specimens sent on approval. 
Prospectors’ Sets, Blowpipe Cases, Cabinets, Geologists’ 
Hammers, Card Trays, Glass-Capped Boxes, Models of Crystals, 
and all Apparatus for Mineralogists and Geologists. 
NEW CATALOGUES POST FREE. 
RUSSELL & SHAW, 38 Ct. James Street, Bedford Row, London, W.C. 
NOTICE.—Advertisements and business letters for ‘* Nature” should be addressed to the Publishers; Editorial Com. 
The telegraphic address of ‘“* Nature”’ is “* Phusis,”” London, 
SUBSCRIPTIONS TO 
Telephone—Gerrard, 8830. 
“NATURE.” 
To all Places Abroad :— Boss id 
Yearly aoe aa at os ie POG 
Half-yearly (26 Numbers) 0 15 6 
Quarterly (13 Numbers).. a 0 *6; 0 
(A charge of 6d. is made for changing Scotch and Irish Cheques.) 
Cloth Cases for binding ‘‘ Nature” are issued at 1s. 6d. each, and can be sent post free for ls. 9d. 
One Sixth Page, or One Third Col. 
Quarter Page, or Half a Column ... 
Half a Page, or a Column 
Whole Page... 
Gd ety 
-_ 
Aune” 
cooo® 
For the re-direction of replies to advts. a charge of 3d. per advt. is made. 
Cheques and Money Orders should be Crossed and made payable to MACMILLAN @& CO., Limited. 
OFFICE: ST. MARTIN’S STREET, LONDON, W.C. 
