136 



NATURE 



[April 6, 19 16 



102 of Danysz in the treatment of malignant or grave 

 syphilis. Cases which followed the ordinary course 

 are not dealt with in the present paper, which is con- 

 cerned with twenty-two cases of abnormal, or par- 

 ticularly severe syphilis. The results are strongly in 

 favour of the treatment. — E. Bataillon : New experi- 

 ments on the fecondation membrane in the eggs of 

 Amphibia. 



BOOKS RECEIVED. 



Our Cottage and a Motor. By W. Moncreiff. Pp. 

 163. (London : G. Allen and Unwin, Ltd.) 3s. 6d. 

 net. 



Meteorites : their Structure, Composition, and 

 Terrestrial Relations. By Dr. O. C. Farrington. Pp. 

 x + 233. (Chicago: The author). 2 dollars. 



Rambles of a Canadian Naturalist. By S. T. Wood. 

 Pp. vii + 247. (London : J. M. .Dent and Sons, Ltd.) 

 .6s. net. 



The Germans. By Rt. Hon. J. M. Robertson. Pp. 

 •viii + 291. (London : Williams and Norgate.) 75. 6d. 

 net. 



Women and the Land. By Viscountess Wolseley. 

 Pp. xi + 230. (London : Chatto and Windus.) 5s. net. 



Report for 1915 on the Lancashire Sea-Fisheries 

 Laboratory at the University of Liverpool and the 

 Sea-Fish Hatchery at Piel. Edited by Prof. W. A. 

 Herdman. No. xxiv. Pp. . 62. (Liverpool : C. Tin- 

 ling and Co.) 



Cambridge Tracts in Mathematics and Mathe- 

 inatical Physics. No. 2 : The Integration of Func- 

 tions of a Single Variable. By G. H. Hardy. Second 

 •edition. Pp. viii + 67. (Cambridge: At the Univer- 

 sity Press.) 35. net. 



Hydrodynamics. By Prof. H. Lamb. Fourth 

 •edition. Pp. xvi + 708. (Cambridge: At the Univer- 

 sity Press.) 24s. net. 



Catalogue of the Ungulate Mammals in the British 

 Museum (Natural History). Vol. v. By R. Lydekker. 

 Pp. xlv + 207. (London : Longmans and Co., and 

 •others.) 75. 6d. 



British Museum (Natural History). Report on 

 •Cetacea stranded on the British Coasts during 1915. 

 By Dr. Harmer. Pp. 12. (London.) is. 6d. 



The Involuntary Nervous System. By Dr. W. H. 

 ■Gaskell. Pp. ix+178. (London : Longmans and Co.) 

 •6s. net. 



The Deposits of the Useful Minerals and Rocks : 

 their Origin, Form, and Content. By Profs. F. 

 Beyschlag, J. H. L. Vogt, and P. Krusch. Translated 

 "by S. J. Truscott. Vol. ii. Pp. xxi + 5 15-1262. 

 •{London : Macmillan and Co., Ltd.) 20s. net. 



DIARY OF SOCIETIES. 



THURSDAY, Afril 6. 

 HoYAL Society, at 4.30.— The Instability of tl:e Pear-shaped Figure of 

 Equilibrium of a Rotating Mass of Liquid : J. H. Jeans.— A Hypothesis 

 of Molecular Configuration in Three Dimensions of Space : Sir William 

 Ramsay.— The Motion of Solids in a Liquid Possessing Vorticity : 

 J- Proudman. — The Occurrence of Gelatinons Spicules and their Mode 

 of Origin in a New Genus of Siliceous Sponges : Prof. A. Dendy.-- 

 The Ultra-Violet Absorption Spectra of Blood Sera : Dr. S. J. Lewis. 



LiNNEAN Society, at 5.— On Five New Species of Edwardsia, Quatr. : 

 Prof. G. C. Bourne. — A New Species of Enteropneusta from the Abrolhos 

 Islands : Prof. W.. T. Dakin.— The Southern Elements of the British 

 Flora : Dr. O. Stapf. 



Faraday Sooety, at 8.— The Making of a Big Gun : Dr. W. Rosenhain. 



FKTDAV, Aprii, 7. 

 Geologists' Association, at 7.30.— Notes on the Corallian of the Oxford 

 District: M. Odling.— The Glacial Geology of the Hud-on Bay Basin : 

 . J. B. Tj-rrell. 



SATURDAY, April 8. 

 Royal Institution, at 3.— Radiations from Atoms and Electrons : Sir 

 J. J. Thomson. 



MONO A V, April 10. 

 Royal Society of Arts, at 4.30.— Surveying : Past and Present : E. A. 



Reeves. 

 ■Aristotelian Society, at 8. — Parmenides, Zeno, and Socrates : Profi 

 • a: E. Taylor. 



TUESDAY, April ii. 



Royal Institution, at 3.— Modern Horticulture— Old and New Methods 

 of Forcing (The Breaking of Rhythm) : Prof. F. Keeble. 



Royal Society ok Arts, at 4.30. — The Forest Resources of Newfound- 

 land : Sir Daniel Morris. >b 



IVEDNESDAY, April 12. 



Institution of Naval Architkcts, at 11 a.nri. — PreRident's Address 



The Work of the Load Line Committee : Sir Philip Watts. — Some Ques- 

 tions in Connection with the Work of the Load Line Committee : W. S. 

 Abell. At 3. — 1 he Laws of Skin Friction of a Fluid in Stream Line and 

 in Turbulent Motion along a Solid of Great Length : Dr. C. H. Lees.— 

 Skin Friction Resistance of Ships and our Useful Knowledge of the 

 Subject : G. S. Baker. — Experiments to Determine the Resistance of 

 Bilge-keels to Rolling : Prof. T. B. Abell. — An Experimental Tank Repro- 

 ducing Wave Motion : Col. G. Russo. At 7.30. — A Brief Summary of the 

 Present Position of the Marine DieselEngine and its Possibiliti-rs : Eng.- 

 Lieut. W. P. Sillince. — The Co-ordination of Propeller Results: J. D. 

 Young. — Note on Maximum Propulsive Efficiency of Screw Propellers: 

 T. C. Tobin. 



THURSDAY, April 13. 



Institution of Electrical Engineers, at 8. — Discussion: The 

 Present Position of Electricity Supply in the United Kingdom ; and the 

 Steps to be taken to Improve and Strengthen it. 



Child Study Society, at 6. — Experin.ents on Hand-writing in Schcjols ; 

 Dr. C. \V. Kimmin<, Mrs. Grainger, and Miss Golds. At 7.30. — Annual 

 Meeting. 



Institution OF Naval Architects, at 11 a.m. — Subdivision of Merchant 

 Vessels : Reports of the Bulkhead Committee, 1912-1915 : Sir Archibald 

 Denny. — Strength of Watertight Bulkheads : J. F. King. — Some Effects of 

 the Bulkhead Committee's Reports in Practice : A. T. Wall. At 3.— Notes 

 from a Collision Case : J. Reid. — Shipyard Cranes of the Rotterdam 

 Dockyard Company : M. G. de Gelder. 



FRIDAY, April 14. 



Royal Institution, at 5.30. — The Genesis and Absorption of X-Rays : Sir 

 J. J. Thomson. 



Institution of Mechanical Engineers, at 6. — Theory and Practice in 

 the Filtration of Water : W. Clemence. 



Royal Astronomical Society, at 5. 



SATURDAY, April 15. 



RovAL Institution, at 3. — kadiations from Atoms and Electrons : Sir 

 J. J. Thomson. 



Optical Society, at 8. — Practical Workshop and Laboratory Measure- 

 ments : S. D. Chalmers. — Some Further Notes on Focometry : T. F. 

 Connolly. 



CONTENTS. PAGE 



Heredity and Chromosomes • u? 



The Technology of Sulphur and Sulphur Com- 

 pounds 118 



Homer and History 118 



Our Bookshelf 119 



Letters to the Editor: — 



Science versus Classics.— Sir E. A. Schafer, F.R.S. 120 

 Numerals for Scales and Punches. {.Illustrated.) — 



A. P. Trotter . 121 



International Latin. — Dr. John W. Evans 122 



Osmotic Pressure or Osmotic Suction — Which ?— ( With 



Diagrams.) — Frank Tinker I22 



The Expansion of a Homogeneous Function in 



Spherical Harmonics. — S. K, Banerji 123 



Preventive Eugenics 123 



The Manufacture of Porcelain. ByB. M. ; J. W. M. 124 

 The Commonwealth Institute of Science and In- 

 dustry 126 



Notes 126 



Our Astronomical Column :— 



Comet 1916a (Neujmin) 130 



Solar Variation- 131 



The Translational Motion of Binary Stars 131 



Education and Industry in France 131 



The Corrosion of Condenser Tubes. By Prof. 



H. C. H. Carpenter 13X 



Civil Service Estimates for Science and Education 132 



University and Educational Intelligence 134 



Societies and Academies I34 



Books Received 136 



Diary of Societies 136 



Editorial and Publishing Offices : 



MACMILLAN & CO., Ltd., 



SI. MARTIN'S STREET, LONDON, W.C. 



NO. 2423, VOL. 97] 



Advertisements and business letters to be addressed to the 

 Publishers. 



Editorial Communications to the Editor. 

 Telegraphic Address : Phusis, London. 

 Telephone Number : Gerrard 8830. 



