'34 



NATURE 



[November 23, 191 1 



65. 



R. S. Ball, 

 University 



F.R.S. 

 Press.) 



BuggP- (Bucher der 

 190. (Leipzig : P. 



The Mind of Primitive Man. By F. Boau. Pp. xi + 

 394. (London: Macmillan and Co., Ltd.) 6*. 6d. net. 



Unity in Nature : an Analogy between Music and Life. 

 By C. E. Stroineycr. Pp. x-fsSg. (London and Man- 

 chester : Sherratt and Hughes.) 135. 6d. net. 



Outlines of Kducation Courses in Manchester University. 

 Pp. viii-HiSg. (Manchester: University Press.) 35. net. 



A Text-book of Practical Chemistry for Technical 

 Institutes. By Dr. A. E. Dunstan and F. B. Thole. Pp. 

 *+33S- (London : Methucn and Co., Ltd.) 3s. ()d. 



Plant Life and Involution. By Prof. I). II. Campbell. 

 Pp. iv-h36o. (New York : H. Holt and Co.) 1.60 dollars net. 



Minist^re de r.Agriculturc. Direction de I'Hydraulique 

 ct dcs Amdliorations Agricoles. Service des Grandes 

 Forces Hydrauliques (Region des Alpes). Compte Rendu 

 et R^sultats des Etudes et Travaux au 31 D6cembre, 1910. 

 Tome iv. Pp. 556. Annexe i. Cartes. Pp- »4+8 maps. 

 .Annexe ii. Nivellements. Thirty-three plates. 



An Elementary Treatise on Cross-ratio Geometry, with 

 Historical Notes. By the Rev. J. J. .Milne. Pp. xxiii-H 

 288. (Cambridge : University Press.) 



S. Primer of .Astronomy. By Sir 

 Reissue. Pp. viii -1-338. (Cambridge 

 15. 6d. net. 



Chemie und Technik. By Dr. G. 

 .Naturwisscnschaft, ii. Band.) Pp. 

 Reclam, jun.) 



The Sun. By C. G. Abbot. Pp. xxv-l-448. (London : 

 D. .Appleton and Co.) 7s. 6d. net. 



The Process of the Year. Notes on the Succession of 

 Plant and Animal Life. By H. H. Brown. Pp. 180. 

 (London : S.P.C.K.) is. 6d. 



An Intermediate Text-book of Botany. By E. Evans. 

 Pp. viii + 394. (London: Longmans and Co.) 65. 



Philosophy. By N. M. Butler. Pp. vii-l-si. (New 

 York : Columbia University Press ; London : Frowde.) 

 45. 6d. net. 



Charles Darwin and Samuel Butler. A Step towards 

 Reconciliation. By H. F. Jones. Pp. 28. (London : 

 Fifield.) 15. net. 



The Advance of Photography. Its History and Modern 

 .Applications. By A. E. Garrett. Pp. xiii-f-382. (London : 

 Kegan Paul and Co., Ltd.) 125. 6d. net. 



A History of British Mammals. By G. E. II. Barrett- 

 Hamilton. Part ix. Pp. 121-168. (London : Gurney and 

 Jackson.) 25. 6d net. 



A Text-book of the Principles of Physics. By Dr. .A. 

 Daniell. New and revised edition. Pp. xxv-t-8i9. 

 (London : Macmillan and Co., Ltd.) 175. net. 



A Text-book of Physics. By Prof. L. B. Spinney. Pp. 

 xi-l-605. (London : Macmillan and Co., Ltd.) 125. net. 



Ancient Hunters, and their Modern Representatives. 

 By Prof. W. J. Sollas, F.R.S. Pp. xvi f 416. (London: 

 Macmillan and Co., Ltd.) 125. net. 



Selsey Bill : Historic and Prehistoric. By E. Heron- 

 Allen. Pp. xvi-h404-H3 maps-l-lvii plates in to\t. (London : 

 Duckworth and Co.) 2I. 2s. net. 



DIARY OF SOCIETIES. 



THURSDAY, Novkmukk 23. 

 Royal Society, at 4.30. — On the Iron Flame Spectrum and those of 

 Sun-spots and 'Lower-type Stars: Sir N. Lockyri, K.C. H., F.R.S. — 

 Sinh.ilese Iron and Steel of Ancient Ofigin : Sir R. .\. Hadfield, F.R.S. 

 — On the Conductivity of a t>as between Parallel Plate Electrodes 

 when the Current approaches the Maxinjum Value : Prof J. S. Townsend, 

 F.R.S. — Spectroscopic Investigations in connection with the Active Modi- 

 fication of Nitrogen. II. Spectra of Elements and Compounds excited by 

 the Nitrogen: Hon. R. J. Strutt, K.R.S., anl Prof. A. Fowler, F.R.S.— 

 Tne Less Refrangible Spectrum of Cyanogen, and its Occurrence in the 

 Carbon Arc; Prof. A. Fowler, F. K.S., and H. Shaw.— Note on the 

 Monatomicity of Nton, Krypton, and Xenon : Sir W. Ramsay. K.C. B., 

 F.R.S. — The Adherence of Plain Surfaces: H-M- Hudgett. — On the 

 Resistance to the Motion of a Thread of Mercury in a Glass Tube: G. D. 

 West. — The Distillation of Binary Mixtures of Metals in vacuo. Part I. 

 Isolation of a Compound of Magnesium and Zinc : .-X. J. Berry. — .\aalysis 

 of Tidal Records lor Brisbane for the Year 1908 : F. J. Selby. 



Institution of Electrical Engineers, at 8. — Automatic Reversible 

 Battery Boosters : K. Rankin. 



RovAL Anthropological Institute, at 8.15. — Huxley Memorial 

 Leaure. — The E^ly Inhabitants of Western .\sia: Prof F. \on Luschan. 



Institution of Mining and Metallurgy, at 8. — The Development oi 

 the Copper Queen and the Warren Mining District : Dr. James Douglas. 



Che.mical Society, at 8.30.— ^x/ra Meeting.— VroL Harold B. Dixon, 

 F.R.S., will deliver the Berthelot Memorial Lecture. 

 FRIDAY. November 24. 



PrtvsiCAL Society, at 5.— The Maximum Value of the Electric Stress 

 between Two Unequal Spherical Electrodes: Dr. A. Russell.— The 



Cu- I 'I 1 Silica : F. J. Harlo "• ■ 



C W. Clack. -The .; 



A< I ; 1 and Actinium: K. - 



-i he Mai;iirii. Itai.vition I'oint of Ccmentite : S \s I. Sinitt., 



W. White, and .S. G. Barker. 



SATURDAY, Novembem »s 

 Estsx Field Club (at RtMx Muteum of Nat < 



6. — Mor* about Dr. Benjamin Allen (1663-1- 



CoauDoa-Piace Book: Miller Christy.— A h; 



Epping, E«Mx. — Notes on While Varieties of Flower*: C Nic.'io^v 

 MONDAY, November 97. 

 RovalSocibtyof Arts, «t8.— TheCarbonisatioj. of Coal: Prof. Viv.u., i. 



I^wet. 

 Inbtitutk or AcTt;ARiF.s, at 5.— A New Method of approximating to the 



value* of Ijisi Survivor Annuitieo on two or more lives, and to the vatil 



of Joint Life Annuities when the advantages of Makeham'i Law are 



available : G. J. Lidstone. 



TUESDAY, NovKMBER a3. 

 Royal ANTHROfOLOr.iCAL Institutk, at 8.15.— Prehistoric Monuments ia ^ 



the Outer Hebrides and thtir Astronomical Significance : Capt Boyle T. 



Somerville, R.N. 

 Institution of Civil Engineers, at 8. — Electric Lighting of Kailway] 



Trains : The Brake-Vehicle Method : R. T. Smith. 

 WEDNESDAY, November i^. 

 RovAL Society of Arts, at 8.— The Efliciency of the Aeroplane : A. E. 



Berriman. 



FRIDAY, December 1. 

 Institution of Civil Enginkers, at 8.— Biake-lining Coefficients of j 



Friction : J. and W. Legg. 



CONTENTS. PAGI 



Human Geography i( 



The American and Country Life, By E. J. R. . . loil 



Elementary Meteorology. By R. C i( 



A Garden of Heibs . . i( 



Physical Chemistry for the Geologist. By A. H. . ic 



Feeble-minded Children ic 



Elementary Mathematics i< 



Ouf Book 6helf . . i< 



Letters to the Editor:— 



Electriciiv and Vegetation. —Sir Oliver Lodge, 



F.R.S'. 107 



Fi-h and Diought. i^With Diagram.)— }. Y. 



Buchanan, F.R.S. . 107 



The Inheritance of Mental Characteis. — Dr. Charles 



Walker no; 



Nature of Light Emited by Fireflies. — Puran 



Singh; S. Maulik ill 



Trematode Generic Names Proposed for the "Official 



Liit of Zoological Names."— C. W. Stiles ... ill 



DewiniQii. — Sidney Skinner in 



The Colours of Fishci. — W. B. Croft ill 



The Weather of 1911. — Commander Campbell 



Hepworth 112 



Rotation Period of the Sun. (/r///; Diagrams.) By 



Charles P. Butler ii| 



Magnetic Observations at the Colaba Observatory n 

 Agricultural Education in the Univeisity and the 



School iri 



The Notification of Tuberculosis ill 



Foot-and-mouth Disease lu 



Dr. W. Sutherland. Uy J. L ill 



Notes Ill 



Our Astronomical Column : — 



The Spectrum of Brooks's Comet, igiii lal 



The Chemical Unity of tht: Cosmos I2I 



Sun-spots and Flocculi in 1910 I2| 



Astrographic Catalogue, Perth (W.A.) Section ... IS 

 The Case-hardening of Steel. {Illustrated.) By Dr. 



W. Rosenhain u 



The Institution of Engineers and Shipbuilders in 



Scotland. By T, H. B 12J 



Ticks U 



Seismology at the British Association. By Prof. 



John Milae, F.R.S \\ 



Some Recent Work on Sex li 



The Lake Villages in the Neighbourhood of 



Glastonbury 11 



Legislation against Insect Pests and Plant Diseases 12 



Practical Standards (or Electrical Measurement I3 



The Loch Levcn Water-power Works 12 



University and Educational Intelligence i; 



Societies and Academies \\ 



Books Received i; 



Diary of Societies ij 



