Page images
PDF
EPUB
[graphic][merged small][merged small][subsumed][merged small][merged small][merged small][merged small][merged small][merged small]

NUMEROUS EXAMPLES OF WORKS BY

MODERN ARTISTS.

MANUFACTURER of Patented Induction Coils, other
Scientific Instruments and Engineering Appliances

to the Government Departments.
JOINTLESS SECTION COILS, my system of 1868, to order, 10 in. Coil,

4000 ohms R, very thick discharge. Primary Coils for 10 to 230 volts. COMMERCIAL SERIES OF COILS, as Fig., at about one balf of catalogue prices.

Maker and Designer of the following Coils :-
POLYTECHNIC, 29 in. spark.
SPOTTISWOODE, 44 in. spark.
THE SOUTH KENSINGTON COIL, 48 in. spark. Special Coils for

Wireless Telegraphy.
NEW TRIPLE-POLE MERCURY BREAK, giving a stream-like effect

wben used with Apps' Patented Induction Coil (this can be fitted to

any Induction Coil), £6 6s. HOSPITAL X-RAY SETS, complete in every detail, from £25 each. The Model Apparatus adopted for South Africa, with Batteries, small

Steam Motor, &c. SETS OF X-RAY APPARATUS suitable for

Field Hospitals, from £50.
HIGH FREQUENCY APPARATUS of my newest models.

PRICES per return post.

The AUTOTYPE COMPANY'S Processes of Permanent Photographic Reproduction are extensively employed by the Trustees of the British Museum, the Local Government Board, many of the Learned Societies, and leading Publishers.

Copies of Coins, Seals, Medals, MSS.. Drawings, Engravings, Art Objects, Microscopic Work, &c.

Inquiries are invited from those requiring Book Illustratiins of the very highest quality. Specimens and Estimates submitted.

The Autotype Fine

Art Gallery,

74 NEW OXFORD STREET, LONDON, W.C.

Open Free Daily, 10 to 6.

JENA LABORATORY GLASSWARE.

MARCONI'S WIRELESS TELEGRAPH CO.,

T&

[ocr errors]

B

[ocr errors]

GEN..

Ltd.,

VENA

BOILING FLASKS, BEAKERS,
RETORTS, TEST TUBES, TUBING
FOR EXPLOSION FURNACES,

COMPOUND TUBING (D.R.P.)
Resisting in a high degree sudden
changes of temperature and the

action of corrosive chemicals.

Combustion Tubing for Elemen-
TRADE MARK. tary Analysis. (pose applicatiofice)
SCHOTT & GEN. Glassworks, Jena (GERMANY).
The Jena Glasses are, in the U.K., on sale with the following firms :
Aberdeen.

Manchester.
A. & J. SMITH, 23 and 25 St. FREDK. JACKSON & Co.,
Nicholas Street

14 Cross Street.
Birmingham,

JAMES WOOLLEY, SONS & F. E. BECKER & CO. (W. and

Co., Ltd., Victoria Bridge. J. George, Ltd., Successors), 159

Newcastle upon Tyne. and 160 Great Charles Street.

BRADY & MARTIN, Ltd,
PHILIP HARRIS & Co., Ltd.,

London.
Edmund Street.

BAIRD & TATLOCK (London)
Dublin.

Ltd., 14 Cross Street, Hatton
F. E. BECKER & CO. (W. and

Garden, E.C.
J. George, Ltd., Successors), 182

F. E. BECKER & Co. (W. and J.
Great Brunswick Street.

George, Ltd., Successors), 3310 37 PHILIP HARRIS & Co., Ltd.,

Hatton Wall, Hatton Garden, E.C. 179 Great Brunswick Street.

A. GALLENKAMP & Co., Lid., Glasgow.

19 & 20 Sun Street, Finsbury, E.C. J. George, Ltd., Successors), 36

JOHN J. GRIFFIN & SONS,

Sardinia

Ltd., 20-26
Renfrew Street.

Street,
Leeds.

Lincoln's Inn Fields. W.C. REYNOLDS & BRANSON, Ltd., TOWNSON

MERCER, 34 14 Commercial Street,

Camomile Street, E.C
For Photography, Unsurpassed for fine definition.

[graphic]

MANUFACTURERS OF
High-Class Apparatus for Röntgen F.E. BECKER & CO...W. and
Ray and High Frequency Work.

10", 12" & 14" INDUCTION COILS. PORTABLE HOSPITAL SETS,

SWITCHBOARDS, &c., &c. New Descriptive Price List Free on Application to

Seni a card merely quoting 2107.

TAYLOR TAYLORU HOBSON.L's 18 Finch Lane, London, E.C.

COOKE ENSES

ETOUGHTON STALEY WORKS LEICES:

MACMILLAN & CO.'S BOOKS FOR STUDENTS OF ZOOLOGY, THE CAMBRIDGE NATURAL HISTORY.

Sc.D.,

EDITED BY S. F. HARMER, Sc.D., F.R.S., AND A. E. SHIPLEY, M.A, F.R.S.

TO BE COMPLETED IN TEN VOLUmes. 8vo. PRICE 175. NET EACH. WORMS, LEECHES, &c.

INSECTS. PART II.

VOLUME VI.
VOLUME II.

Hymenoptera continued (Tubulifera and Aculeata), ColeopFlatworms. By F. W. GAMBLE, M.Sc. Nemertines. By tera, Strepsiptera, Lepidoptera, Diptera, Aphanip.

Miss L. SHELDON. Threadworms, &c. By A. E. tera, Thysanoptera, Hemiptera, Anoplura. By SHIPLEY, M.A., F.R.S. Rotifers. By Marcus HARTOG,

DAVID SHARP, M.A., F.R.S. M.A. Polychaet Worms. By W. BLAXLAND BENHAM,

FISHES, So. D.Sc. Earthworms and Leeches. By F. E. Bed.

VOLUME VII. DARD, M.A., F.R.S. Gephyrea, &c. By A. E.

Fishes (exclusive of the Systematic Account of Teleostei). By

T. W. BRIDGE, Sc.D., F.R.S. Fishes (Systematic SHIPLEY, M.A., F.R.S. Polyzoa. By S. F. HARMER,

Account of Teleostei). By G. A. BOULENGER, F.R.S. F.R.S.

Hemichordata. By S. F. HARMER, Sc.D., F.R.S. SHELLS.

Ascidians and Amphioxus. By W. A. HERDMAN,

D.Sc., F.R.S.
VOLUME III.

AMPHIBIA

REPTILES. Molluscs and Brachiopods. By the Rev. A. H. Cooke,

VOLUME VIII. A. E. Shipley, M.A., F.R.S., and F. R. C. Reed, M.A.

By Hans GADOW, M.A., F.R.S.

BIRDS.

VOLUME IX. INSECTS & CENTIPEDES.

By A. H. Evans, M.A. With numerous Illustrations by G. E. VOLUME V.

LODGE.

MAMMALIA. Peripatus. By ADAM SEDGWICK, M.A., F.R.S. Myria.

VOLUME X. pods. By F. G. SINCLAIR, M.A. Insects. Part I. By Frank Evers Beddard, M.A. Oxon., F.R.S., ViceBy David SHARP, M.A., F.R.S.

Secretary and Prosector of the Zoological Society of London. *.' The volume dealing with SPIDERS, SCORPIONS, and CRUSTACEA is in the Press, and the remaining volume, dealing with PROTOZOA (including Sea Anemones, Jelly Fish, Star Fish, &c.), is in active preparation. ELEMENTARY PRACTICAL An INTRODUCTION to the OSTE.

ZOOLOGY. By Professor T. J. PARKER, D.Sc., OLOGY OF THE MAMMALIA. By Sir WILLIAM F.R.S., and Professor W. NEWTON PARKER, Ph.D. H. FLOWER, F.R.S., F.R.C.S. Úlustrated. Third With 156 Illustrations. Crown 8vo.

TOS. 6d.

Edition. Revised with the assistance of HANS Gadow, A MANUAL OF ZOOLOGY. Ву

Ph.D. Crown 8vo.

IOS, 6d. Prof. T. J. PARKER, D.Sc., F.R.S., and Prof.

A TEXT-BOOK of COMPARATIVE W. A. HÁSWELL, M.A., D.Sc., F.R.S.

ANATOMY. By Dr. ARNOLD LANG. With Preface by Illustrations. Crown 8vo. Ios. 6d.

Dr. Ernst Haeckel. Translated by H. M. and M. BERA TEXT-BOOK OF ZOOLOGY. By

Vols. I. and II. (completing the Invertebrates).

8vo. 175. net. each. Professor T. J. PARKER, D.Sc., F.R.S., and Profes. ELEMENTS of the COMPARATIVE sor W. A. HASWELL, M.A., D.Sc., F.R.S. In Two Vols. With Illustrations. Medium Svo, 36s. net.

ANATOMY OF VERTEBRATES. Adapted from the

German of Professor WIEDERSHEIM..By Professor THE FOUNDATIONS OF ZOO- W. NEWTON PARKER. With additions by the LOGY. By W. K. BROOKS, Ph.D., LL.D. 8vo.

Author and Translator. 270 Woodcuts. Medium 8vo. 1os. 6d. net.

Second Edition. 125. 6d, net. INTRODUCTION TO ZOOLOGY. | THE STRUCTURE of MAN: An IXBy C. B. and G. C. DAVENPORT. Crown 8vo. 6s.

DEX to his PAST HISTORY. By Professor WIED.

ERSHEIM. Translated by H, M. BERNARD. The LESSONS IN ELEMENTARY Translation, Edited and Annotated, and a Preface written BIOLOGY. By Prof. T. J. PARKER, D.Sc., F.R.S.

by Professor G. B. Howes, F.R.S. With 105 Figures Illustrated. Third Edition, revised. Crown Svo. 1os. 6d.

in the Text. 8vo. 8s. net.

A TREATISE ON COMPARATIVE A COURSE of INSTRUCTION in

EMBRYOLOGY. By F. M. BALFOUR, F.R.S. 2 vols. ZOOTOMY. Vertebrata. By Professor T. J. PARKER, 8vo. Vol. I. 185. Vol. II. 215. D.Sc., F.R.S. With Illustrations. Crown 8vo. 8s. 6d.

The ELEMENTS of EMBRYOLOGY.

1 AN ATLAS OF PRACTICAL ELE- By Sir MICHAEL FOSTER, K.C.B., M.D., F.R.S..

MENTARY ZOOTOMY. By the late G. B. HOWES, and Professor F. M. BALFOUR, F.R.S. Second LL.D., Professor of Zoology, Royal College of Science,

Edition, revised. Edited by A. SEDGWICK, M.A., and London. With a Preface by Prof. HUXLEY. 4to. 10s. net. W. HEAPE, M.A. Illustrated. Crown 8vo. IOs, 60, ELEMENTARY BIOLOGY. By T. H. The NATURAL HISTORY of the

MARKETABLE MARINE FISHES of the BRITISH HUXLEY, F.R.S., and H. N. MARTIN, F.R.S. New

ISLANDS. Edition. Revised and extended by the late G. B. Howes

By J. T. CUNNINGHAM, MA. With and D. H. Scott. Crown 8vo. 1os. 6d.

Preface by E. RAY LANKESTER, F.R.S. Ilustrated.

Medium 8vo. 75. 6d. net. THE ORIGIN AND METAMOR- NATURAL HISTORY of AQUATIC

PHOSES of INSECTS. By LORD AVEBURY, F.R.S. INSECTS. By Professor L. C. MIALL, F.R.S. With Illustrations. Crown 8vo. 35. 60. [Nature Series. Illustrated. Second Impression. Globe 8vo. 31.6

MACMILLAN AND CO., LIMITED, LONDON.

With 300

NARD

WATKINS & DONCASTER,

PHOENIX
ASSURANCE COMPANY, LIMITBD.

FIRE OFFICE.
19 LOMBARD ST., E.C., and 57 CHARING CROSS, S.W.

ESTABLISHED 1782.
Moderate Rates. Absolute Security. Blectric
Lighting Rules Supplied. Liberal Loss Settlements.

Prompt Payment of Olaims.
LOSSBS PAID OVER £20,000,000.

BIRKBECK BANK

Naturalists and Manufacturers of
CABINETS AND APPARATUS
FOR ENTOMOLOGY, BIRDS' EGGS AND SKINS, AND ALL

BRANCHES OF NATURAL HISTORY.
SPECIAL SHOW-ROOM FOR CABINETS.
N. B.-For Excellence and Superiority of Cabinets and Apparatus, refer.
ences 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, &c., Preserved and Mounted by First-class

Workmen true to Nature.
All Books and Publications on Natural History supplied.
36 STRAND, LONDON, W.C.

(Five Doors from Charing Cross.) Our Catalogue (96 pp.) Post free on application.

ESTABLISHED 1851.
Current Accounts. 2% Interest allowed on minimum

monthly balances when not drawn below 6100.
Deposits. 21% Interest allowed on Deposit Accounts.
Advances made. Stocks and Shares bought and sold.
Apply C. F. RAVENSCROFT, Secretary,

Southampton Buildings, High Holborn, W.C.

MICROSCOPICAL PETROGRAPHY.

MICROLOGICAL LABORATORY AND SCHOOL OF NATURAL SCIENCE.

GRATIS AND POST FREE.
Scientifically arranged Catalogue of Megascopic and Microscopic
Specimens is now being prepared. Gentlemen are invited to send in their
applications without delay, as only 5000 copies will be issued.
Sample Slide of expertly prepared ROCK SECTION, 1/-, post free.
Metals, Minerals and Rocks expertly mounted for Microscope,

1/- each, from material supplied.
LESSONS IN PRACTICAL LITHOLOGY BY CORRESPONDENCE.

A vacancy for one Geological Student, desirous of passing with high distinction in Universiry or Civil Service. Small premium. Pocket-money allowed. Apply:- THE DIRECTOR, MICROLOGICAL LABORATORY,

IT ASPENLEA ROAD, HAMMERSMITH, LONDON, W.

Gentlemen interested in the above study are invited to send to

JAMES R. GREGORY & CO., i Kelso Place, Kensington Court, London, W.,

for a Prospectus ot THE TWENTIETH CENTURY ATLAS OF

MICROSCOPICAL PETROGRAPHY, now being issued in Twelve Monthly Parts, each Part containing Four Fine

Half-Tone Plates, and also Four actual Rock Sections. Subscription in advance, either Monthly, 7/-; Quarterly, 21/-; or for the whole Series of 12 Monthly Parts & 48 Sections, £4 4s. LIVING SPECIMENS FOR

THE MICROSCOPE. Volvox, Spirogyra, Desmids, Diatoms, Amoba, Arcella, Actinosphærium, Vorticella, Stentor, Hydra, Floscularia, Stephanoceros, Melicerta, and many other specimens of Pond' Life. Price is. 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; Hormipbora (preserved); Leptoplana; Lineus, Ampbiporus,
Nereis, Aphrodite, Arenicola, Lanice, Terebella ; Lepas, Baladas,
Gammarus, Ligia Mysis, Nebalia, Carcinus; Patella, Buccinum, Eledone,
Pectens Bugula, Crisia, Pedicellina, Holothuria, Asterias, Echinus.
Ascidia, Salpa (preserved), Scyllium, Raia, &c., &c.

For prices and more detailed lists apply to
Biological Laboratory, Plymouth

ROCKS, MINERALS, FOSSILS.
For Collectors, Students, Technical Schools, Colleges, &c.

COLLECTIONS IN POLISHED DEAL BOXES.
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/-. Adapted for the Board of Education Examinations in

Geology, Physiography, and Mineralogy.
A large stock of Minerals, Rocks, Fossils and Microscopic Objects for

selection. Specimens sent on approval.
Cabinets, Geologists' Hammers, Chisels, Card Trays, Glass-capped

Boxes, Models of Crystals, &c., &c.

NEW CATALOGUE POST FREE. THOMAS D. RUSSELL, 78 Newgate St., London, E.C.

MINERALS, ROCKS, FOSSILS.
A large stock of BRITISH AND FOREIGN MINERALS always on view.
CORNISH MINERALS

A SPECIALITY.
Special display for Teachers and Students on Saturdays. Open till 7 p.m.

RICHARDS' SHOW ROOMS,
3 Beauchamp Place, Brompton Road, South Kensington,

London, S.W.

TUF DIRFCTOR

SCIENTIFIC WORTHIES.

A List of this series of Steel and
Photogravure Portraits of Men of
Science will be sent post free to any
reader of "Nature" on application to

the Publishers.
ST. MARTIN'S STREET, LONDON, W.C.

ALBERT EDWARD JAMRACH

(Late CHARLES JAMRACH),

NATURALIST, 180 ST. GEORGE STREET EAST. Implements of Savage Warfare, Idols, Sacred Masks, Peruvian Pottery,

Netsukis China, Lacquers, Gongs, Shells, and other Curios.

8

1

2

[ocr errors]

.

1 10

.

NOTICE.-Advertisements and business letters for NATURE should be addressed to the Publishers; Editorial
Communications to the Editor. The telegraphic address of NATURE is “Prusis," LONDON.
SUBSCRIPTIONS TO “NATURE."

CHARGES FOR ADVERTISEMENTS.
£ s. d. TO ALL PLACES ABROAD:- £ s. d.

£ s. d.

6 s. d. Yearly

Yearly
* Three Lines in Column

6 Quarter Page, or Half
Per Line after

a Column Half-yearly

Half-yearly

One Sixteenth Page, or Eighth Col. 10
Quarterly
Quarterly

Half a Page, or a Column 3 5 7 6

o One Eighth Page, or Quarter
Column

018 6 Whole Page
• The first line being in heavy type is charged for as Two Lines.
Cheques and Money Orders payable to MACMILLAN Cw CO., Limited.

OFFICE: ST. MARTIN'S STREET, LONDON, WC.

6 6

[ocr errors]

6

O 14

[ocr errors][merged small]

.

O 15
o 8

[ocr errors]

6 6

[graphic]

MAY BE HAD IN
BEAKERS (various forms),
FLASKS (all shapes),

The Ideal Camera for

BIRD PHOTOGRAPHY, NATURAL HISTORY TUBING (any size).

SUBJECTS, PORTRAIT AND FIGURE STUDIES,

ARCHITECTURAL & GENERAL WORK. Price List free on application to

Write for full particulars from.. C. E. MÜLLER, ORME & CO., Ltd., 106 & 108 REGENT STREET, W.,

or 54 CHEAPSIDE, E.C. CONTRACTORS TO H.M. GOVERNMENT,

ESTABLISHED OVER 60 YEARS. 148 HIGH HOLBORN, LONDON, W.C. Printed by Richard CLAY AND SONS, LIMITED, at 7 & 8 Bread Street Hill, Queen Victoria Street, in the City of London, and published by MacLLAS AND CO., LIMITED, at St. Martin's Street, London, W.C., and THE MACMILLAN COMPANY, 66 Fifth Avenue, New York. --THURSDAY, March 3, 1995

[graphic]

With Eye-piece inch, 4 inch
Ohject. glasses, in Mahogany

Case,
£5 12s. 6d.
Double Nose-piece, 9/- extra.

THE NEW PATTERN COMBINED BARO-THERMOGRAPH.
Focussing Substage, 14/6 extra. The above instrument combines in one apparatus the Recording Baro-

meter and Recording Thermometer, giving thus on one and the same chart

continuous records of the atmospheric pressure and temperature for seven R. & J. BECK, Ltd., Illustrated Price Lists of self-Recording and other Scientific 68 CORNHILL,

38 HOLBORN VIADUCT, E.C. LONDON. Branches—45 CORNHILL, and 122 REGENT STREET.

« PreviousContinue »