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MESSRS. MACMILLAN & CO.'S NEW SCIENTIFIC BOOKS.

NEW BOOK BY MR. FRANCIS GALTON.

Now Ready, Svo, Cloth, 6s, net. NGER PRINTS. By FRANCIS GALTON, F.R.S. TIMES:-" The whole subject is handled with that rare patience and thoroughness in investigation, and that keen but ius acumen in interpretation which are characteristic of all Mr. Gallon's work."

WITH NEW PREFATORY CHAPTER.

Now Ready, Extra Crown 8vo, Cloth, 7s. net. REDITARY GENIUS: An Enquiry into its Laws and Consequences. By FRANCIS GALTON, F.R.S. New Edition.

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Now ready, crown 8vo, Cloth, 6s. TE GENESIS AND GROWTH OF RELIGION. The L. P. Stone Lectures for 1892 at Princeton Theological Seminary, New Jersey. By the Rev. S. H. KELLOGG, D.D., of Toronto, Canada.

NEW AND REVISED EDITION.

Now ready, Crown 8vo, Cloth, 6s. 6d. ODERN VIEWS OF ELECTRICITY. By OLIVER J. LODGE. D.Sc., LL.D., Prosessor of Physics in University College, Liverpool. With Illustrations.

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Now ready, Crown 8vo, Cloth, 55. (PERIMENTAL EVOLUTION. Lectures delivered in the “ Summer School of

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Now ready, Crown 8vo, Cloth, 75. 60. JHT: A COURSE OF EXPERIMENTAL OPTICS, CHIEFLY WITH

THE LANTERN. By LEWIS WRIGHT, Author of " Optical Projection: a Treatise on the Use of the Lantern." Second Edition. Revised and Enlarged. The present edition is somewhat enlarged and in some respects modified. Further consideration has led me to revise the method and order of went as regards some of the phenomena of polarised light. Some attempt has been made, though briefly, to show the general relation and bearing ent discoveries by Herts, Lippmann, and others. Having alsə received many proofs of the delight and instruction afforded by the beautiful polarising preparations first described by Mr. C. l. For, and having carried the designing and preparations of such illustrations very much er since the work originally appeared, I have added full details of everything of the kin? devised to the present date, and of the practical bulation of mica films. These paragraphs will constitute perhaps the principal additions.

NEW BOOK ON MECHANISM.

Imper. 8vo, 30s. net. ODERN MECHANISM. Exhibiting the latest progress in Mechanics, Motors,

and the Transmission of Power. Edited by Park BENJAMIN, LL.B., Ph.D., Editor of " Appleton's Cyclo of Applied Mechanics" Edition of 1880, Member of the American Society of Mechanical Engineers, of the American Institute of Electrical Engineers, and of the British Chartered Institute of Patent Agents. Illustrated.

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Now Ready, 4to, Paper Covers, 25. TE GRAMMAR OF WOODWORK. A Graduated System of Manual Training for Elementary, Secondary, and Technical Schools, designed for the Pupils of the Whitechapel Craft School by WALTER E. DEGERDON, Head Instructor in Woodwork at the Whitechapel Craft School, formerly Woodwork Instructor in the Cambridge University Engineering Workshops. With a Preface by H. LLEWELLYN SMITH.

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Now ready, Crown 8vo, Cloth, 6s. E PRINCIPLES OF ELEMENTARY ALGEBRA. By N. F. Dupuis,

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A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE,

To the solid ground
Of Nature trusts the mind which builds for aye."— WORDSWORTH.

No. 1205, VOL. 47.]

THURSDAY, DECEMBER 1, 1892.

[PRICE ONE SHILLING.

Registered as a Newspaper at the General Post Office.)

(All Rights are Reserved.

NEW POLARISCOPE OBJECTS. : NALDER BROS. & CO.

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RECENT SHELLS.

CHRISTMAS LECTURES.

sale by Auction. ROYAL INSTITUTION OF GREAT BRITAIN,

MONDAY, DECEMBER 12, instead of TUESDAY, as previons

announced. ALBEMARLE STREET, PICCADILLY, W.

THE VALUABLE COLLECTION OF BRITISH LEPIDOPTI SIR ROBERT STAWELL BALL, D.Sc., LL.D., F.R.S., Lowndean

FORMED BY R. S. STANDEN, ESQ., F.E.S. Professor of Astronomy in the University of Cambridge, will deliver a Course of Six Lectures (adapted to a Juvenile Auditory) on "Astronomy,"

MR. J. C. STEVENS will sell by Aucti encing on TUESDAY, DECEMBER 27, 1892, at 3 o'clock; to be at his Great Rooms, 38 King Street, Covent Garden, on MOND continued on December 29, 31; and January 3, 5, 7, 1893

DECEMBER 12, at half-past 12 precisely, the Valuable Collecti Subscription (for Non Members) to this Course, One Guinea (Children British Lepidoptera formed by R. S. STANDEN, Esq. F.E.S. under sixteen, Half-a-Guinea); to all the Courses in the Season, Two ing many rarities. Also, Exotic Lepidoptera and Coleoptera, Bu Guineas. Tickets may now be obtained at the Institution.

flies in papers as received, Birds' Eggs, Skins, and Nests, Heads

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On View the Saturday prior, from ro till 4, and Morning of Sale, a
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Catalogues had
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Helix FULTONI, Godwin-Ansten.

Latest additions to stock.
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NEW LIST OF MICROSCOPIC SECTIONS OF Students are regularly sent to the College by Leading Educational Authorities, whose Names are given on the Prospectus

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Also Lists of Collections of Minerals, Reks, and Fossils, Apparatos

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