?So 



NAT URL 



:v 9, 1919 



sion of the application of science to indi '■ 



Fatou : Suites oi inalytical Functions. <i. Julia: Sap 

 es defined bj .1 kinematic property. J. (iiiillanme : 

 ations of the sun made at thi Lyons Obserw 

 tory during the second quartei oi 1918. Summa| 

 of observations made on seventy-s^ n days of the 

 spots, their distribution in latitude, and the distriljjt 

 Son of the faculae in latitude- E. Helot: The rdle m 

 the satellite material in the structure of the surfafis 

 oi the earth, the planets, and the sun.— A. PortevJffl: 

 Comparison between the internal elastic equili- 

 brium of alloys after tempering and after harden- 

 ing by drawing in the cold. A comparison 

 of the internal strains developed in a 6oM> 

 brass by tempering al 760° C. in water and by 

 ving. MM. R. Dunrisay, Tripier, and Toquet : 

 The miscibility of phenol and alkaline liquids. Tin- 

 relation between the temperature of complete misS- 

 bility of phenol and alkaline solutions of varying con- 

 centrations has been studied and the results givfll 

 graphically. — L. F. Navarro: The constitution of the 

 Island of Gomera (Canary Islands).— A. Vacher : The 

 morphogeny of the roadstead of Brest.— P. Pruvost : 

 The fossil fishes of the Coal Measures of the North of 

 France. -M. Moliiard : The influence of certain condi- 

 tions on the comparative consumption of glucose and 

 levulose by Sterigtnatocystis nigra starting from sac- 

 charose. — A. Paillot : Some new parasitic coccobactlli 

 of the cockchafer. 



BOOKS RECEIVED. 



Man's Redemption of Man : A Lay Sermon. By 

 William Osier. Reprint. Pp. 63. (London : ( Ion- 

 Stable and Co., Ltd.) yd. net. 



Chemistry Notes and Papers for School Use. 

 (Notes and Question Papers to Supplement the Pupil's 

 own Laboratory Notes.) Part i. : Introductory and 

 First-year Work. In nine sections — A to I. Pp. 114. 

 Part ii. : Second-year Work. In seven sections — A to 

 <;. Pp. 101. Part iii. : Third-year Work. In eight 

 sections — A to H. Pp. 123. By G. N. Pingriff. 

 1 London: " Geographia," Ltd.) 2s. 3d. net each 

 part. 



A School Chemistry Method: Being the Teacher's 

 Supplement to Chemistry Notes and Papers. Parts i., 

 ii., and iii. By G. N. Pingriff. Pp. xii+80. 

 (London: "Geographia," Ltd.) is. 91!. net. 



Afforestation. Bv John Boyd. Pp. 39. (London : 

 W. and R. Chambers, Ltd.) is. net. 



La Face de la Terre (Das Antlitz der Erde). By 

 Prof. E. Suess. Traduit avec 1'autorisation de l'auteur 

 et annot6 sous la direction de E. de Margerie. 

 Tome iii., 40 Partie. Tables GeMierales de Ton 

 Tomes i.-iii. Pp. 25S. (Paris: A. Colin.) 25 francs. 



From Darwinism to Kaiserism. By Dr. R. Munro. 

 Pp. xviii4-i75. (Glasgow: J. Maclehose and Sons.) 

 4s. net. 



Intravenous Injection in Wound Shock. By Prof. 

 W. M. Bayliss. Pp. xi + 172. (London: Longmans 

 and Co.) qs. net. 



Can We Compete? Bv G. E. Mappin. Pp. x+140. 

 (London : Skeffington and Son, Ltd.) 4s. 6d. net. 



DIARY OF SOCIETIES. 



THURSDAY, Ianuary q. 



Institution or Electrh ,1 V,.tii.k,, at 6.— M. B. Field: The 

 Navigational (Magnetic) ! istrument of Precision. 



Optical SociETv, at 7.-! 1 Col. A. I Williams : The Design and Inspec- 

 tion of Certain Optical Munitions of War. 



FRIDAY, January 10. 



Rovai. Astronomical Society, ai : \ . 1 .. Cortie : The Spectrum 



of Nova Aquila-, tqi8, June 15.— 7. K, Fotheringhom : The New Star of 



Hipparchus and the Dates of Birch and Accession of Mithridates.— Rev. 



J. G. Hag en : Observations of Nova Amiila;, 1018.— A. Stanl y Will 



I 



MONDAY, January 13. 

 Royal Institution, at 3.— Prof. Sp=nscr Wilkin 



NO. 2567, VOL. I02] 



Wi 



of the 

 and its 



TUESDAY, January ,4. 

 Institution of Civil Engineers, at 5.30.— A. G. Cooper: Slips and 

 cs on the Ceylon Government Railways.— F. W. Scott : Pietcr- 

 maritzbarg-Rier Spruit Deviation. 



h.tv, at 5.30.— A. Hutchinson : Stereoscopic Lantern- 

 slides of Crystal Pictures.— L. J. Spencer: Mineralogies] l haracters of 

 Turite (= Turgite) and some other Iron-ores from Nova Scotia. 

 WEDNESDAY, January is. 

 Royal Society op Arts, at 4.30. — A. V. Kcndrick: English Carpets. 



'CIETV, at B.— Annual Meeting. 

 Royal Microscopical Society, at 8.— J. E. Barnard: Presidential 

 Address : The Limitations of Microscopy. 



THURSDAY, January r6. 

 Royal Institution, at 3.— Prof. J. N. Collie : Chemical Studies of Oriental 



[I TV op Arts, at 4.30.— H. Kelway-Bamber, M.V.O. : Coal and 



Mineral Traffic on the Indian Railways. 

 Linnkan Society, at 5.— Capt. A. W. Hill : The Care of Soldiers' Graves. 



— N. E. Brown: Old and New Species of Mesembryanthemum, with 



Critical Remarks. — Dr. J. R. Leeson : Exhibition of Mycetozoa from 



F.pping Forest. 

 Chemical Society, at 8. 



Royal Institut 



FRIDAY, January 17. 

 1 5.30. — Sir J. Dewar : Liquid Air ; 



CONTENTS. p. 



Optical Research and Design. By Dr. S. Brodetsky 



Petrol and Petroleum 



Wool Industries 



Our Bookshelf 



Letters to the Editor: — 



Some Temperature Anomalies. (With Map.) — Hy. 



Harries 



The Perception of Sound. —Prof. D, Fraser Harris 



A Mistaken Butterfly.— Dr. John Aitken, F.R.S. . 



The Future of British Mineral Resources. By 



Prof. H. Louis 



Supersaturation and Turbine Theory. By Prof. 



H. L. Callendar, F.R.S 



The Epidemiology of Phthisis. By Prof. R. T. 



Hewlett 



Notes 



Our Astronomical Column : — 



Schorr's Comet ... 



Opposition of Juno 



Twelve New Spectroscopic Binaries 



The Minor Planet 692 Hippodamia 



Observations of Eros . ... . 



Paris Academy of Sciences : Prizes Proposed for 



1920 ... 



The Association of Public School Science Masters 



Mr. Fisher and the Board of Education 



Observations on the Results of Our System of 

 Education. By Col. Sir Ronald Ross, K.C.B., 



K.C.M.G., F.R.S 



University and Educational Intelligence . ... 



Societies and Academies 



Books Received 



Diary of Societies 



36i 



362 



?63 



364 

 365 

 366 



366 



367 



309 



373 

 373 



373 

 373 

 373 



37S 

 379 

 380 

 380 



Editorial and Publishing Offices : 



MACMILLAN AND CO., Ltd., 



ST. MARTIN'S STREET, LONDON, W.C.3. 



[dverlisements and business letters to be addressed to the 

 Publishers. 



Editorial Communications to the Editor, 

 1 raphic Address: Pnusis, London. 

 Telephone Number: Gerrard 8830. 



