xeviil 
NATURE 
[JANUARY 28, 1897 
KING’S COLLEGE, LONDON. 
BACTERIOLOGICAL LABORATORY. 
Director—Professor CROOKSHANK. 
Demonstrator—G. NEwMan, M.D., D.P.H. 
EVENING CLASS. 
An Evening Class of Lectures and Practical Laboratory Instruction for 
Vedical Practitioners, Veterinary Surgeons, Analysts, &c., isheld on 
Monday Evenings, at 7 p.m. (Fee, £3 3s.). f 
Early application to Dr. NEWMAN for admission is desirable. 
BEDFORD COLLEGE, LONDON 
(FOR WOMEN), 
YORK PLACE, BAKER STREET, W. 
Principal—MISS EMILY PENROSE. 
LENT TERM SESSION 1856-97. 
The Half-Term will begin on MONDAY, FEBRUARY 22. 
LUCY J. RUSSELL, Honorary Secretary. 
FORTHCOMING EXAMINATION. 
DRAUGHTSMAN in the Hydrographical Department of the Admiralty 
(17-25), February 17. Expertness in Hydrographical Chart Drawing 
€ssential. a 
The date specified is the latest at which applications can be received. 
They must be made on forms to be obtained, with particulars, from the 
SECRETARY, Civil Service Commission, London, S.W. 
THE TEACHERS’ GUILD, 
74 GOWER STREET, W.C. 
REGISTRY DEPARTMENT FOR MEN. 
SCHOLASTIC AGENCY WORK at lowest charges to cover expenses 
Registrar—W. H. Fricker, M.A., who attends daily (3 to 5 p.m. at 
present) except Thursdays. 
OPTICAL & SCIENTIFIC INSTRUMENTS. 
Spectrometers, Spectroscopes, Goniometers, Cathetometers, Optical 
Benches, &c., &c. Instruments for special purposes constructed to Clients 
own designs. Price List on application. 
W. WILSON (formerly Foreman at Messrs. ELLIOTT Bros.), 
56 Crogsland Road, Chalk Farm, London, N.W. 
Aj 
ALBERT EDWARD JAMRACH 
(Late CHARLES JAMRACH), 
NATURALIST, 
180 ST. GEORGE STREET EAST. 
Implements of Savage Warfare, Idols, Sacred Masks, Peruvian Pottery, 
Netsukis China Lacquer, Gongs, Shells, and other Curios. 
TO SCIENCE LECTURERS. 
THE CINEMATOGRAPH FOR LIVING PHOTOGRAPHS. 
See Mr. HUGHES'S PATENT COMBINATION OPTICAL 
LANTERN, used by late W, LAnT-CARPENTER, Esq., Prof. ForBes, &c. 
Miniature Triple Lantern constructed for B. J. MALDEN, Esq.; great 
success. New Oxyhydrogen Microscope. Science Lanterns for Class 
Demonstration. Magnificent Results. Docwra Triple, Prize Medal, 
Highest Award. Supplied to the Royal Polytechnic Institution, Dr. H. Grat- 
TAN GuiINNess, Madame ApELINA Parti, &c., &c. Patent Pamphengos 
Science Lanterns. The Universal Lantern 4-inch Condensers, 4-wick Lamp, 
Portrait Combination front Lenses, 18s. 6¢., Marvellous value. Science 
Lecture Sets. Novelties. 
Outfits in the World. 
MANUFACTURER OF ‘ 
ELECTRICAL & PHYSICAL 
INSTRUMENTS, 
44 Hatton Garden, London. 
Catalogues Free. 
THE ART OF PROJECTION, AND COMPLETE 
MAGIC LANTERN MANUAL, by an Expert. Over tco fine Illus- 
trations, with Priceless Wrinkles in all Branches of Optical ‘Projection. 
Never before published. How to choose, what to avoid, and how to 
use Oil, Limelight, Dissulving Electric, Opaque, Microscopic, and 
Polarising Lanterns, Slide M g and Painting, Enlarging, Register- 
ing, &c.. &c. Prof. MALDEN says :—‘‘A thoroughly practical work, 
and should be studied by the experienced operator and amateur alike.” 
A complete vade mecum of Optical Lantern Manipulations. Price, 
bound in Cloth, 3s. 6d. ; Postage, sd. Worthits weight in gold. Send 
for Opinions of the Scientific Press to Mr. HUGHES, Brewster House, 
Mortimer Road, Kingsland, North London. 
WATKINS & DONCASTER, 
NATURALISTS, AND MANUFACTURERS OF ENTOMOLOGICAL AND OTHER 
SCIENTIFIC APPLIANCES AND CABINETS. 
Plain Ring Nets, wire or cane, including Stick, rs. 3d., 25., 2s. 6d. Fold- 
ing Nets, 3s. 6d., 4s. Pocket Boxes, 6d., g@., 15., 1s. 6a. Zinc relaxing 
Boxes, gd., 18., 1s. 6d., 2s. Store Boxes, as. 6d., 45., 55-, 6s. Setting Boards, 
flat or oval, from 5d. to 1s. 8d. Setting Houses, 9s. 6d., 11s. 6¢., 145. 
Breeding Cage, 2s. 6d., 4s., 5s., 7s. 6d. Botanical Cases, japanned double 
tin, rs. 6d., 25. g@., 3s. 6d., 4s. 6d., 7s. 62. Botanical Paper, from 1s. 1d. 
to 2s. 2d. per quire. Insect Cases, 2s. 6d. to 11s. Forceps for removing 
Insects, 1s. 6d¢., 28., 2s. 6d. per pair. Cabinet Cork, 7 by 34, 1s., 1s. 4d. per 
doz. Nested Willow-chip Boxes, 4 doz. 8¢.—Our new Label List of British 
Micro-lepidoptera, with English and Latin names, 1s. 6¢. Improved Pocket 
Pupa-Digger in leather sheath, 1s. 9¢. Taxidermists’ Companion, contain- 
ing most necessary implements for skinning, ros. 6d. ; Scalpels, with ebony 
handles, rs. 3¢.; Fine Pointed Scissors, 2s. per pair; Egg Drills 2d., 3¢., 
1s.; Brass Blowpipes, 4d., 6d. A large stock of British, European, and 
Exotic Lepidoptera, Coleoptera, and Birds’ Eggs —Entomological Pins of 
every kind.—Benzoline and Oil Lanterns for sugaring, &c. (new and 
improved pattern), 2s. 6d. and 5s. each. 
A LARGE STOCK OF INSECTS AND BIRDS’ EGGS. 
Cabinets.—Special Show Room. For Particulars and Measurements see 
our Catalogue (66 pp.), which will be sent post free on application, 
Birds, Mammats, &c., Preserved and Mounted by First-class Workmen., 
36 STRAND LONDON: W.C. (Five doors from Charing Cross.) 
MINERALS OF SPECIAL INTEREST 
AND BEAUTY. 
Transparent and White Calcites in attractive Crystal groups ; 
Baryta Crystals in many Colours—White, Brown, Blue, and 
Golden-brown, with phantom enclosures; Specular Iron in 
brilliant Crystals; Pink Rubelite in Lepidolite ; Red Quartz in 
small but vividly attractive specimens ; Native Arsenic Crystals 
from Japan; Senarmontite from Algeria, &c. 
Spectal Mineral List Post Free. 
Collections to Illustrate Geology and Physiography. 
THOMAS DBD, RUSS Eee 
78 NEWGATE STREET, LONDON, E.C. 
ia H. BUTLE R, M.A. oxea Assoc. R. 8. Mines, 
NATURAL HISTORY AGENCY, 
158 BROMPTON ROAD, LONDON. 
Dealer in Rocks, Minerals, Fossils, and other Objects 
of Scientific Interest. 
The Minerals last received include :—Alabandite, Alexandrite, Anglesite 
Anorthite, Native Arsenic and Tellurium, Beekite, Boleite, Cobaltite, 
Columbite, Cumengite, Hauerite, Lithiophorite, Lorandite, Nagyagite, 
Petzite, Pharmacolite, Proustite, Stephanite, Sphene, Topaz, and Umangite. 
Collections, in boxes with divisions, as supplied to the Department of Science 
and Art:—zo Typical Rocks (about 3” x 4”), 20s.; 16 Types of Rock 
Structures, ros. ; and 13 Rock-Constituents, 7s. 6¢. Case of 12 Micro-slides 
of Rocks, and ditto of 6 Oozes, Polycystina, Diatoms, Chalk-Grains, Re- 
crystallized Sandstone, Pélé’s Hair, and Coral Limestone, 13s. 6d. each set. 
Practical Demonstrations given in Mineralogy and Palzontology. On>Sale, 
British Birds, their Eggs and Nests, weekly parts, 6d. 
LIVING SPECIMENS FOR 
THE MICROSCOPE. 
Volvox, Spirogyra, Desmids, Diatoms, Amoeba, Arcella, Actinospherium, 
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. 
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; Hclothuria, Asterias, Echinus; Ascidia, Salpa 
(preserved), Scyllium, Raia, &c., &c. 
For prices and more detailed lists apply to 
Biological Laboratory, Plymouth. 
THE DIRECTOR. 
