lOO 



NATURE 



[x\PRIL 4, 191; 



tion to the knowledge of the tectonics of the Asturias : 

 anomalies at the contact of the Coal Measures and the 

 Arnao Devonian,— P. A. Dangeard ; The nature of the 

 <:hondriome and its rdle in the cell. Current views on 

 the nature and function of the chondriome are ques- 

 tioned, and new facts based on a method of staining 

 with cresyl-blue are given. This stain can be applied 

 in such a manner that there is no interference with 

 the life of the cell. It is shown that, contrary to the 

 generally accepted view, the chondriome of the cell is 

 altogether independent of the plastidome. — E. Ariis : A 

 formula giving the saturated vapour pressure of a 

 diatomic liquid. An extension of the method described 

 in previous communications for monatomic liquids. 

 Chlorine and carbon monoxide are worked out as 

 examples. — M. G. Koenigs was elected a member of the 

 section of mechanics in succession to the late M. H. 

 Ldaut6. — M. T. Beritch : The convergence and divetg- 

 ■ence of series with real positive terms. — A. Buhl : The 

 intervention of the geometry of masses in certain 

 theorems concerning algebraic surfaces.— L. Schlussel : 

 The measurement of rapid and irregularly variable 

 <iynamical actions. — B. de Fontviolant : New theory re- 

 lating to the effects of the wind on bridges. — D. 

 Eydoux : The movements of water in equilibrium pipes. 

 — A. B. P. Leme : A new method of quantitative 

 analysis. Suggestion for a new arrangement of spec- 

 trograph for quantitative work. — A. Mailhe andF. de 

 Godon : A new method of preparation of monomethyl- 

 aniline and dimethylaniline by catalysis. A mixture 

 •of the vapours of methyl alcohol and aniline is passed 

 over alumina at a temperature between 400° and 

 430° C, when a mixture of monomethylaniline and 

 dimethylaniline is obtained, containing only traces of 

 aniline. By a repetition of the process with addition 

 of methyl alcohol, dimethylaniline is obtained. The 

 new method has the following advantages over the 

 process in current use : the aniline may contain water 

 and the methyl alcohol need not be specially purified 

 from acetone; also, the use of autoclaves and high 

 pressures is unnecessary. — E. Leger : The action of 

 hydriodic acid upon cinchonine and on its isomers, 

 cinchonigine, cinchoniline, and apocinchonine.- — L. 

 Gentil, M. Lugeon, and L. Joleaud : The existence of a 

 Triassic sheet in the Sebou basin, Morocco. 



BOOKS RECEIVED. 



Medical Electricity. By Dr. L. Jones. Seventh 

 •edition, revised and edited by Dr. L. W. Bathurst. 

 Pp. xv + 588. (London: H. K. Lewis and Co., Ltd.) 

 155. net. 



The Nature of Solution. By H. G. Jones. With a 

 Biographical Sketch by Prof. j. E. Reid, and Tributes 

 by Profs. Arrhenius, Ostwald^ and Woodward. Pp. 

 xxiii + 380. (London: Constable and Co., Ltd.) Price 

 125. 6d. net. 



The Megalithic Culture of Indonesia. By W. J. 

 Perry. Pp. xiii+198. (Manchester: At the Univer- 

 sity Press ; London : Longmans, Green, and Co.) 

 Price 12s. 6d. net. 



Aeronautics in Theory and Experiment. By W. L. 

 Cowley and H. Levy. Pp. xi + 284. (London: E. 

 Arnold.) Price 165. net 



Essays in Scientific Synthesis. By Eugenio Rig- 

 nano. 'Pp. 254. (London : G, Allen and Unwin, Ltd.) 

 Price 7s. 6d. net. 



Lecithin and Allied Substances : The Lipins. By 

 Dr. H. Maclean. Pp. vii + 206. (London: Long- 

 mans, Green, and Co.) Price 75. 6d. net. 



Thirty-first Annual Report of the Bureau of Amer- 

 ican Ethnology to the Secretary of the Smithsonian 

 Institution, 1909-10. Pp. 1037. (Washington : 

 Government Printing Oflfice.) 



NO. 2527, VOL. lOl] 



DIARY OF SOCIETIES. 



MONDAY, April 8. 

 Royal Geographical Society, at 8.30.— The Future of the Albanian 



State : Capt. J. S. Barnes, K.F.C. (leave permitting). 

 Aristotelian Society, at 8.— Value and Kxistence : Dr. F. C. S. Schiller 



TUESDAY, April 9. 

 RovAL Institution, at 3.— Scientific Signalling and Safety at Sea: Prof. 



J. Joly. 

 Institution of Civil Engineers, at 5.30.— The Derwent Valley Water 



works : E. Sandeman. 

 Zoological Society, at 5.30.— Head of the Chara.sinid Fish, Hydrocyon 



goliath: Dr. G. A. Boiilenger.— The Variation of the Pit-Viper, Lachcsh 



atrox: Miss J. B. Procter. 

 RoNTGEN Society, at 8.— The Silvanus Thompson Memorial Lecture : 



Sir Ernest Rutherford 



WEDNESDAY, April id. 

 Royal Institution, at 3.— Scientific Signalling and Safety at Sea : Prof. 



J- Joly. 

 British Association Geophysical Committee (Royal Astronomical 



Society), at 5.— Earthquake Waves : Prof. H. H. Turner and Dr. G. W. 



Walker. — Earthquake Frequency: R. D. Oldham. 



THURSDAY, April ii. 

 Royal Institution, at 3. — E.\perimental Psychology : Lt.-Col. C. S. 



Myers. 

 Institution of Electrical Engineers (Cancer Hospital, FulhamRoad), 



at 6.— Joint Meeting vk-ith the Electrical Section of the Royal Society of 



Medicine. — Papers on Medical Electricity. 

 Institution ok Mining and Metallurgy, at 5.30. — Presidential Address : 



Hugh F. Marriott. 

 Optical Society (Imperial College of Science and Technology, South 



Kensington), at 8. — The Balsam Problem : J. W. French. 



FRIDAY, April 12. 

 Royal Institution, at 5.30. — Absorption and Phosphorescence : Prof. 



E. C. C. Baly. 

 Royal Astronomical Society, at 5. 



SATURDAY, April 13. 

 Royal Institution, at 3.— Musical Instruments Scientifically Considered : 

 Prof. E. H. Barton. 



CONTENTS. PAGE 

 Goursat's "Course of Analysis," and Other Mathe- 

 matical Works. By G. B. M. . 81 



Medical History and Scientific Method 82 



Milk Products 83 



Our Bookshelf 83 



Letters to the Editor: — 



A Proof that any Traiisfinile Aggregate can be Well- 

 ordered.— Philip E. B. Jourdain .84 

 Future Supplies of Laboratory Apparatus and Mate- 

 rials.— X. Y. Z. . . . ... 84 



Long-range Guns.— Sir G. Greenhill, F.R.S. . . . 84 



Long-range Guns. By A. Mallock, F. K.S. . . . 84 



Cloud Formations as Observed from Aeroplanes. 



{Illustrated.) By Capt. C. K. M. Douglas . . 85 

 Photographic Determinations of Stellar Parallax. 



By Dr. A. C. D. Crommelin 88 



The Sikkim Himalaya • . . 88 



Notes 89 



Our Astronomical Column : — 



Infra-red Solar Spectrum 93 



Harvard College Observatory •93 



The Canadian " Observer's Handbook " 94 



Ephemerides of Algol Variables 94 



The Training of the French Engineer 94 



Nematode Pests . . 94 



Rainfall Distribution over France 95 



Mineral Production of Peru and the Philippine 

 Islands . . . ... -95 



National Laboratories and Industrial Development. 



II. By Sir R. T. Glazebrook, C.B., F.R.S. ... 96 



University and Educational intelligence 98 



Societies and Academies 98 



Books Received ... 100 



Diary of Societies 100 



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