136 



NATURE 



[September 23, 1920 



experimentally, the leprous organism tends to retain 

 bone-salts, especially calcium. Clinically, in multiple 

 exostosis bone-salts are inferred to be added to the 

 body ; experimentally, the organism tries to rid itself 

 of bone-salts, particularly calcium, and in the stabilised 

 stage throws out excessive quantities of magnesium. 

 ^C. G. Abbot : The larger opportunities for research 

 on the relations of solar and terrestrial radiation. A 

 general research survey communicated by the National 

 Research Council. — S. R. Detwiler : The hyperplasia 

 of nerve-centres resulting from excessive peripheral 

 loading. The exf>erimenls proving these results con- 

 sisted in transplanting the right anterior limb rudi- 

 ment of Amblystoma punctatum a given number of 

 body segments posterior to the normal position. 



Books Received. 



Department ef Scientific and Industrial Research. 

 Fuel Research Board. Special Report No. 3 : The 

 Coal Fire. By Dr. M. VV. Fishenden. Pp. vni+112. 

 (London : H.M. Stationery Office.) 4i-. net. 



Religion and Science. From Galileo to Bergson. 

 By J. C. Hardwick. Pp. ix-)-i48. (London: 

 S.P.C.K. ; New York : The Macmillan Co.) 8s. net. 



Directions for a Practical Course in Chemical 

 Physiology. By Dr. W. Cramer. Fourth edition. 

 Pp. viii+137. (London: Longmans, Green, and Co.) 

 4i. 6d. net. 



Organic Chemistry for Medical, Intermediate 

 Science, and Pharmaceutical Students. By Dr. A. K. 

 Macbeth. Pp. xi+235. (London : Longmans, Green, 

 and Co.) 6s-. 6d. net. 



The Fireman's Handbook and Guide to Fuel 

 Economy. By C. F. Wade. Pp. viii+84. (London : 

 Longmans, Green, and Co.) 2s. 6d. net. 



From Newton to Einstein/ Changing Conceptions 

 of the Universe. By Dr. B. Harrow. Pp. 95. 

 (London : Constable and Co., Ltd.) 2S. 6d. 



The Chemical Analysis of Steel-Works' Materials. 

 By F. Ibbotson. Pp. viii + 2g6. (London : Longmans, 

 Green, and Co.) 2 is. net. 



A Second Course in Mathematics for Technical 

 Students. By P. J. Haler and A. H. Stuart. 

 Pp. viii-l-363. (London : W. B. Clive.) 6s. 



Privy Council. Medical Research Council. The 

 Science of Ventilation and Open Air Treatment. 

 Part ii. (Special Report Series, No. 52.) Pp. 295. 

 (London : H.M. Stationery Office.) 6s. net. 



Induction Coil Design. By M. A. Codd. Pp. vi-(- 

 239-l-iv plates. (London : E'. and F. N. Spon, Ltd.) 

 2 IS. net. 



The Year-Book of the Universities of the Empire, 

 1918-1920. Edited by W. H. Dawson. Pp. xiv-l-503. 

 (London : G. Bell and Sons, Ltd.) 15s. net. 



Icones Plantarum Formosanarum nee non et Con- 

 tributiones ad Floram Formosanam. Bv B. Hayata. 

 Vol. ix. Pp. vii-hi55-l-vii plates. (Taihoku : Bureau 

 of Forestry.) 



Air Ministry. Meteoi'ological Office. British 

 Meteorological and Magnetic Year Book, igro. 

 Part v., Roseau Mondial, iqio. Monthly and .Annual 

 Summaries of Pressure, Temperature, and Precipita- 

 tion at Land Stations. Pp. xxiv-f-112. (London: 

 Meteorological Office, Air Ministry.) 15s. net. 



The Diary of Opal Whitelev. Pp. xxii-l-3ii. 

 (London : G. P. Putnam's Sons.) 7s. 6d. net. 



Ludwig Boltzmanns Vorlesungen iiber die Prinzipe 

 der Mechanik. Dritter Tail. Elnstizitatstheorie und 

 Hydromechanik. Edited by Prof. H. Buchholz. 

 Pp. xiii-f6o8-820. (Leipzig: J. A. Barth.) 21.60 

 marks. ' 



The Diary of a Sportsman Naturalist in India. By 

 E. P. Stebbing. Pp. xvi-t-298. (London : John Lane.) 

 2 IS. net. 



The Mining Laws of the British Empire and of 

 Foreign Countries. Vol. i., Nigeria. By G. Stone. 

 Pp. xxiii+254. (London : H..\l. Stationery Office.) 

 iSs. net. 



Ordnance Survey Maps : Their Meaning and Use. 

 By Dr. M. I. Newbigin. .Second edition. Pp. 128. 

 (Edinburgh: W. and A. K. Johnston, Ltd.; London: 

 Macmillan and Co., Ltd.) 2s. net. 



The Laws of Mechanics. By S. H. Stelfox. Pp. 

 xi-|-2oi. (London : Methuen and Co., Ltd.) 6x. 



William Sutherland : A Biography. By W. A. 

 Osborne. Pp. 102. (Melbourne : Lothian Book PuK 

 Co. Pty., Ltd. ; London : British Australasian.) ys. 6d: 



Memoirs of the Geological Survey. Special Reports 

 on the Mineral Resources of Great Britain. Vol. xvi., 

 Refractory Materials : Ganister and Silica — Rock — 

 Sand for Open-hearth Steel Furnaces— Dolomite. 

 Petrography and Chemistn-'. By Dr. W. H. Thomas, 

 A. F. Hallimond, and E. G. Radley. Pp. iv-t- 1 15-1- 

 vii plates. (Southampton : Ordnance Survev Office; 

 London : H.M. Stationery Office.) 5s. net. ' 



A Critical Revision of the Genus Eucalyptus. By 

 J. H. Maiden. Vol. v., part i. (Sydney : Botanic 

 Gardens.) 2S^. 6d. 



Solubilities of Inorganic and Organic Substances. 

 By Dr. .'\. Seidell. Second edition. Pp. xxii+845. 

 (London : C. Lockwood and Son ; New York : D. van 

 Nostrand Co.) 45s. net. 



CONTENTS. 



NO. 2656, VOL. 106] 



PAGE 



The Re-challenge to the Ocean loi 



Philosophical Aspects of Nature. By Prof. H. 



Wildon Carr 102 



The Vehicles of Hereditary Qualities 103 



New County Histories 105 



Practical Organic Chemistry. ByJ. B. C 106 



Our Bookshelf 106 



Letters to the Editor: — 



The British Association. — Sir Oliver J. Lod?e, 

 F.R.S. : SirE. RayLankester, K.C.B.,F.R.S.; 

 Prof. Henry E. Armstrong, F.R.S. ; Sir 

 William J. Pope, K.B.E., F.R S. : Prof. 

 Frederick Soddy, F.R.S. ; Dr. F. A. Bather, 

 F.R.S.; Neville Chamberlain, M.P. ; Dr. 

 Hugh Robert Mill ; Frank R. East . . .107 



Relativity. — Prof. J. R. Partington .... 113 



Variations of Eucalyptus Foliasre.— Harford J. Lowe 114 



Old Road Mnps.— C. Carus-\A^iIson 114 



The Electrical Transmission of Pictures. (JUlh 



Dtas^raiii.) By Philip R. Coursey . . 115 



The Structure of the Atom. III. (With Diagram.) 



By C. G. Darwin 116 



Obituary : — 



The Right Hon. Sir William Mather .... 118 



Notes IJO 



Our Astronomical Column : — 



Another Quickly Moving Dwarf Star 124 



Prof. Barnard's Observations of Nova Persei .... 124 



The Bergedorf Observatory. Hamburg 124 



Physiological Effects of Insufficient Oxvgen Sup- 

 ply. ByJ. Barcroft, C.B.E., MA. , F.R.S. ... 125 



The University Problem in London 129 



The Exmoor Earthquake of September 10. By Dr. 



C. Davison 132 



Aids to Forecasting. By C. H. . . . 132 



American Work in Genetics. By R. R. G. . . . 132 



Increase of Population — a Warning 133 



Glass Technology 133 



Rate of Evolution 133 



University and Educational Intelligence .... 134 



Societies and Academies 134 



Books Received 136 



