IV. 



KNOWLEDGE & SCIENTIFIC NEWS. 



[January, 1907. 



JUST PUBLISHED. 



With 278 Figures, xvi ■ 62C p)nec8. Lurgo Crown 8vo. Os. 



A TEKTBOOK OF PRACTICAL PHYSICS. 



By WILLIAM WATSON, A.R.C.S., I).Sc. (Loud.), F.R.S., 



Author o*^ ** A Text Booh of Phy&Ica, " &c. 



Thib is intcmk'tl to slm-vc us ti book of i-cffi't-iu:*' to the Htudorit worhiiij; 

 In n physical laboi'utoi'y. Tlu> i-xpcrlnu'Mts tU'^cflbi-d iiro not liUendod 

 for a boglnnor, but nro suited for n student who has nirondy spent n 

 little ttmo In tho laboratory nnd workud through a nioro olcmontary 

 cour&o of experiments, such as those descr'lbod In the Author's " E!le 

 montary Practical Physics. ' 



I'r.'sfi clu-< .'( m/ I'd iii)i>licalii>ii. 



LONGMANS. GREEN & CO.. 39, Paternoster Row. London. 



Jiisi PiiMislutl. With I'roiiitspitce IVrtiMit of Pr. Stoncv. .iml ^s Ui.mr.uns in 

 tin liM. ri.-\Mi^\,i. I'ric 5s. nrt 



THE ELECTRON THEORY : 



A Popular Introduction to the New Theory of Electricity and Magnetism. 

 By I-:. E. POURNIER, B.Sc. (Lond.). A.K.C.Sc, 



CoinpiltT of " Contciiipurai y Klectriciil Science."' 

 With a Preface by G. JOHNSTONt: 5T0NEY, M.A., D.Sc, F.R.S. 



Ptt{tf'» IVftklij : — *' A remarkable book, aiiti one which contains a world ol 

 sugt^estion for all who are conct'rntiti witl> electrical atlairs, is Mr. K. E. Fournier's 

 new treatise on the ' Electron Theory,' a popular introduction to the new theory 

 of electricity and magnetism.' 



Prospectus sent on Apitlication, 



LONGMANS. GREEN & CO., 39. Paternoster Row. London. 



Ji'^T rrr.LiSMhi\ Ckown ,S\o; pp. .\ii. -| jSj. rKici: 4/6. 



PRACTICAL PHYSICAL CHEMISTRY. 



My ALEX. FINULAV, M.A., Ph.D., U.Sc. 



Lecturer on Physical Chemistry, University of liirmingham. 



With 92 Figures in tlie Text. 



LONGMANS. GREEN & CO., 39, Paternoster Bow, London, E.G. 



RECENT ADVANCES IN THE 



STUDY OF VARIATION, 

 HEREDITY AND EVOLUTION. 



R.OBEKT H. LOCK. M.A., 



Fello'.v of (ionvillc nnd Cains CoIIckc, Cambridge. 

 With Portraits and other Illustrations. 



Crow/n 8vo. 



7s. 6d. net. 



JOHN MURRAY, Albemarle Street, W. 



N O W K i; .\ U Y . 



JOURNAL OF THE 

 ANTHROPOLOGICAL INSTITUTE. 



Vol. XXXVl. J.VNUARY— JUNK, 1906. 



Contents : 



Copper and its Alloys in Prehistoric Times— The Prcsidenlal Address. 

 Prof. VV. GowLAND. — Notes on the Etimot'rapliy of the Ba-Yaka. E. Torday 

 and T. A. Joycr. — The " Genna " amongst tlic Tribes of Assam, T.C. HousoN. 

 — Materials for a Study of Tatu in Uorneo. C. IIo;»E and K. Shkli-okd.— 

 Notes on a Collection of Ancient Eskimo Skulls. J. IIkikuli,^ and F. C. 

 I'arsons. —String Figures and rricks from Central Africa. vV. A. Cl'nning- 

 ToN. — Yoruba String Figures. J. Parkinson. — String Figures fro;n South 

 Africa. A. C. Hauujn. — Some Aspects of the Awetnba Religion and Super- 

 stitious Observances. J. H. West Shkane.— Notes on the Occurrence of Stone 

 Implements in the Valley of the Zambesi around V'ictoria Falls. G. W. 

 Lami'Lugh.— Note upon an Implement of PaUxollthic Type from tlic Victoria 

 Falls, Zambesi. H. Balfour.— The Origin of Wampum. 1). I. Blshnkll, 

 Jun.— Notes on the Tolemism of the Gold Coast. C. H. Hari-er and Others. 

 With Eighteen Plates and many Illustrations in the Text. Price 1 Ss. net. 



London: THE A^THR0P0LOUICAL INSTITUTE. 3. Hanover 

 Square, W. ; or throug:h any Bookseller. 



JUST PUBLISHED. 



Packed in Cardboard Bo.\, 2/- net (Postage 3il.). 



THE WORLD'S CALENDAR. 



From the Beginning to the End of the World. 



WII1^e:s, IVI.A.., rrx>inicy College, Cnm t>K>id^e. 



Fop all Nations and for* all Time. 



SPECIAL FEATURES.— Forms a complete Almanac for all time, according to both Old and New Styles of Reckoning. Shows Easter Sunday 

 for every year from A. D. i to A.D. 2199, Gives tJates of all New Moons from A.D. 1900 to A.U. 2199. 



" 1 have tested it iu various ways and found it correct." — Sir KoyLKX Ball, F.R.S. 



INVALUABLE TO ALL LOVERS OF THE HEAVENS. 



Small 4to. cloth gilt, gilt edges, 15s. net (Postage 5d.). 



A POPULAR GUIDE TO THE HEAVENS. 



Containing 83 beautiful Plates with Explanatory Letterpress and Index. 

 By Sic* RO^BRT? ]BA.ILiU, F.R.S. , Lowndean Professor of Astronomy and Geometry at the University of Cambridge. 



" ,\ luxury to all lovers of astronomv who desire to have at hand a compendious and complete guide to the study of the heavens." — AtheJKvum. 

 " A very complete and reliable handbook." — Knoicledgc. 



GEORGE PHILIP & SON, LIMITED, 32, FLEET STREET, LONDON, E.G. 



wow READY. 



Pp. X + 206. With 44 Illustrations. Price 7s. 6d. net. 



HIGH FREQUENCY CURRENTS. 



THEIR PRODUCTION. PHYSICAL PROPERTIES, PHYSIOLOGICAL 



EFFECTS, AND THERAPEUTIC USES. 



By H. EVELYN CROOK, M.D., F.R.C.S., Member of the Roentgen 



Society, &c. 



Pp. s + i>s. With 15 Plates. 2s. 6d. net. 



THE USES OF X-RAYS IN GENERAL PRACTICE. 



By R. HiatiAM COOPER, Officer in charge of ttie Radiographic Depart- 

 ment, LIniversity College Hospital, &c. 



Cloth. Pp. 108. With 50 Illustrations. Price I/- net. 



(Set of Models of the Ear, 10/6 estra.) 



SOUND AND RHYTHM. 



By W. EUAIUNOS. M.A., Cantab. 

 "This Is an admirable httU' book. Ttic elenit-iu& of physiulDi^ical ucousticsaro described 

 «'Ub remorkivble lucidity and accuracy, and there is a wi^tth of itluatration both in the 

 text and in thu diatTam's."— Addoc 



BAILLIERE, TINDALL & COX, 



8, HENRIETTA STREET, COVENT GARDEN, LONDON, W.C. 



Just Puulisiied. L.'\rge Post 8vo. 7/6 Net. 



THE NEW PHYSICS & CHEMISTRY: 



A Series of Popular Essays on Physical and Chemical 

 Subjects. By W. A. SHENSTONE, F.K.S., Senior 

 Science Master in Clifton College, Author of " A Text- 

 Book of Inorganic Chemistry," "The Life and Work of 

 Justus von Liebig," &c. 



London : SMITH, ELDER & Co., 15, Waterloo Place, S.W. 



their lives and useful labours are being 

 described in a work appearing in num- 

 bers, i/- each. 

 Nos. 17 & 18— VITAL CHEMISTRY : Qeneral. 



// all live as they ought bactciia will not harm us. 

 If any live as they ought not bacteria are the scourges wherewith we are 

 tvhipfcd. 



Vox Prospectuses and Particulars apply to 



A. RAMSAY, IS, Lawn Crescent, Kew Gardens, Surrey. 



BACTERIA ; 



