6o 



NATURE 



[March 20, 19 19 



Pp. x + 98. (Cambridge: At the University Press, 

 1919.) 45. 6d. net. 



The Nature of Being. An Essay in Ontology. By 

 Henry H. Slesser. Pp. 224. (London : George Allen 

 and Unwin, Ltd., 1919.) los. 6d. net. 



Transactions of the Bose Research Institute, Cal- 

 cutta. Vol i. Parts 1 and 2. Life Movements in 

 Plants. By Sir J. C. Bose. Pp. xxvi + 251 + appendix 

 XV. (Calcutta : The Bose Research Institute, 1918.) 



Le Tube Coolidge. Ses Applications Scientifiques, 

 M^dicales et Industrielles. Par H. Pilon. Pp. 83. 

 (Paris : Masson et Cie, 1919.) 4 francs net. 



Les Symbiotes. Par Paul Portier. Pp. xx + 315. 

 (Paris : Masson et Cie, 1918.) 5 francs. 



Immune Sera : A Concise Exposition of our Present 

 Knowledge of Infection and Immunity. By Dr. 

 Charles Frederick Bolduan and John Koopman. 

 Fifth edition. Pp. viii+2o6. (New York : John Wiley 

 and Sons, Inc. ; London : Chapman and Hall, Ltd., 

 1917.) 75. net. 



Coal Tar and Some of its Products. By Arthur R. 

 Warnes. (Pitman's Common Commodities and Indus- 

 tries.) Pp. xxii + 105. (London: Sir Isaac Pitman 

 and Sons, Ltd., n.d.) 2s. 6d. net. 



Home and Farm Food Preservation. By Prof. 

 William V. Cruess. Pp. xxiv+276. (New York : 

 The Macmillan Co. ; London : Macmillan and Co., 

 Ltd., 1918.) 85. net. 



The Human Skeleton : An Interpretation. By 

 Prof. H. E. Walter. Pp. xv + 214. (New York: 

 The Macmillan Co. ; London : Macmillan and Co., 

 Ltd., 1918.) los. net. 



DIARY OF SOCIETIES. 



THURSDAY, March 20. 



RovAL Institution, at 3. — Prof. C. H. Lees : Fire Cracks and the Forces 

 Producing Them. 



RovAL Society, at 4.30.— Dr. C. Chree : Magnetic Storms of March 7-8 

 and August is-16, ipi8, and their Discussion. — L. C. Martin : The 

 Transparency of Biotite to Infra-red Radiations. 



LiNNKAN Society, at 5. — F. Lewis : Notes on a Visit to Kunadiyapara- 

 witta Mountain, Ceylon, with List of the Plants Observed and their Altitu- 

 dinal Distribution. — Miss May Rathbone : Specimens of Plants Preserved 

 by Formalin Vapour. — H. R. Amos : Wheat-breeding with Mr. W. O. 

 Backhouse in Argentina. 



Institution of Minino and Metallurgy, at 5.^0. — Sir Thomas Kirke 

 Rose : The Volatilisation of Gold. — W. S. Curteis : Cobar Slope Measure- 

 ment Methods. 



Institution of Electrical Engineers, at 6. — Discussion on G. L. 

 Addenbrooke's Lectures on Dielectrics in Electric Fields. 



CHiLn-STunv Society, at 6.— Discussion opened by Mrs. K. Truelove : 

 Training of the School Girl in Infant Care. 



Chemical Society, atS.— T._ M. Lowry and H. H. Abram : The Rotatory 

 Dispersive Power of Organic Compounds. IX. Simple Rotatory Dis- 

 persion in the Terpene Series. 



FRIDAY, March 21. 

 Royal Institution, at 5.30.— Prof. W. W. Watts : Fossil Landscapes. 

 Institution of Mechanical Engineers, at 6. — H. C Armitage : Jigs, 



Tools, and Special Machines with their Relation to the Production of 



Standardised Parts. 

 Institution of Electrical Engineers, at 8, with Royal Society of 



Medicine (Electrical Section).— R. S. Whipple : (i) Electrical Methods of 



Measuring Body Temperatures; (2) The Electro-cardiograph. 



SATURDAY, March 22. 

 Royal Institution, at 3. — Sir J. J. Thomson : Spectrum Analysis and its 

 Application to Atomic Structure. 



MONDAY, March 24. 

 Royal Society of Arts, at 4.30. — Prof W. A. Bone : Coal and its Con- 



Royal Geographical Society, at 8.— Capt. Alan Ogilvie : Macedonia. 

 TUESDAY, March 25. 



Royal Institution, at 3. — Pro''. A. Keith : British Ethnology — The 

 People of Scotland. 



Institute of Metals, at 4 and 8. — Annual General Meeting. — Capt. 

 G. D. Bengough and Dr. O. F. Hudson : Fourth Report to the Corrosion 

 Research Committee.— Dr. W. Rosenhain and D. Hanson : The Proper- 

 ties of Some Copper Alloys. — Lt.-Col. C. F. Jenkin : Metallurgical 

 Inform.ation Required by Engineers. 



Institution of Civil Engineers, at s-so. — Further Discussion: J. 

 Caldwell and H. B. Sayers : Electric Welding Developments in Great 

 Britain and the United States of America. — W. S. Abell : Experiments on 

 the Application of Electric Welding to Large Structures. — J. R. Smith : 

 The Application of Electric Welding in Ship Construction and Repairs. 



IVEDNESDAY, March 26. 



Institute of Metals, at 4.— Annual General Meeting.— D. Hanson and 

 S. L. Archbutt : The Micrography of Aluminium and its Alloys. — Owen 

 W. Ellis : Effect of Work on Metals and Alloys.— F. Johnson : The Influ- 

 ence of Cold Rolling upon the Mechanical Properties of Oxygen-free 

 Copper. — At 8. — General Discussion on the Relation of Science to the 

 Non-ferrous Metals Industry. Dr. W. Rosenhain : Science and Industry 

 in Relation to Non-ferrous Metals. — W. R. Barclay : The Relationship 

 between the Laboratory and the Workshop. — F. C. A. H. Lantsberry : 

 The Scope of the Works Laboratory. 



Royal Society of Arts, at 4.30.— Prof. A. H. Gibson : British Engineer- 

 ing and Hydro-Electric Development. (The Training of Engineers.) 



Geological Society, at 5.30. 



Royal Af.ronautical Society, at 8.— Lt.-Col. T. R. Cave Brown Cave : 

 Lighter-than-Air Craft. 



THURSDAY, March 27. 

 Royal Institution, at 3.— Prof C. H. Lees : Fire Cracks and the Forces 



Producing Them. 

 Royal Society, at i.-io.— Probable Papers: Dr. R. McCarrison : The 



Genesis of (Kdema in Beriberi.— H. L. Hawkins : The Morphology and 



Evolution of the Ambulacrum in the Echinoidea. 

 Chemical Society, at 4.30. — Annual General Meeting. 

 Institution of Electrical Engineers, at 6.— The late H. R. Constan- 



tine : The Co-ordination of Research in Works and Laboratories. 

 FRIDAY, March 28. 

 Physical Society, at 5. — Discussion on Metrology in the Industries. 



Introduced by Sir R. T. Glazebrook. 

 Institution of Electrical Engineers (Students' Meeting), at 7.— 



Dr. J. F. Crowley : The Organisation of Technical Engineers. 

 SATURDAY, March 29. 

 Royal In.stitution, at 3.— Sir J. J. Thomson : Spectrum Analysis and its 



Application to Atomic Structure. 



CONTENTS. PAGE 



The Vegetable Oil Industries. By E. F. A 41 



Temperature in China. By C. E. B 42 



Our Bookshelf 43 



Letters to the Editor : — 



Globular Clusters, Cepheid Variables, and Radiation. 



Prof. Frederick Soddy, F.R.S. .43 



Graphical Methods in Nautical Astronomy. — H. B. 



Goodwin 44 



The Oldest Mosquitoes.— Prof. T. D. A. Cockerell . 44 

 Proposed Magnetic and Allied Observations during the 

 Total Solar Eclipse of May 29, 1919. — Dr. Louis 



A. Bauer 44 



A Proof that any Aggregate can be Well-ordered. — 



Philip E. B. Jourdain . . 45 



Coal in Thrace.— Canon Edmund M'CIure; Prof. 



Henry Louis 45 



Curious Markings on Chalk.— J. Reid Moir . • • 45 



Protozoal Parasites in Cainozoic Times. — Dr. G. D. , 



Hale Carpenter 46 



The Peru-Bolivia Boundary Commission. (Illus- 



trated.) By E. H. H 46 



The Air Force Estimates and Aeronautical Research 48 



Ludvig Sylow. By G. B. M 49 



Notes 49 



Our Astronomical Column : — 



Photo-electric Determinations of Stellar Magnitudes of 



Planets 53 



Nova Aquilae 53 



The Variables of Long Period 53 



Reports of the Australian Antarctic Expedition . . 54 

 New Procedure at American Magnetic Observa- 

 tories. By Dr. C. Chree, F.R.S 54 



Forest Research in Europe 55 



The Conservation of Our Cereal Reserves. By Prof. 



Arthur Dendy, F.R.S. 55 



University and Educational Intelligence ... 56 



Societies and Academies 57 



Books Received . 59 



Diary of Societies .60 



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Advertisements and business letters to be addressed to the 

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NO. 2577, VOL. 103] 



Editorial Communications to the Editor. 

 Telegraphic Address : Phusis, London. 

 Telephone Number : Gerrard 883c. 



