SCIENCE PROGRESS 



A QUARTERLY .REVIEW OF 

 SCIENTIFIC THOUGHT, WORK & AFFAIRS 



No. 49. JULY 191 8 (i 



CONTENTS \$X 



RECENT ADVANCES IN SCIENCE: Mathematics (P. E. B. 

 Jourdain) — Astronomy (H. S. Jones) — Physics (J. Rice) — 

 Physical Chemistry (Prof. W. C. McC. Lewis, D.Sc.)- Organic 

 Chemistry (P. Haas, D.Sc.)- Geology (G. W. Tyrrell) -Miner- 

 alogy and Crystallography (A. Scott, D.Sc.)- Botany (E. J. 

 Salisbury, D.Sc.)— Plant Physiology (Prof. V. H. Blackman, 

 F.R.S.) — Zoology (Prof. C. H. O'Donoghue, D.Sc.) — Anthro- 

 pology (A. G. Thacker). 



ARTICLES: Some Aspects of Animal Colouration from the Point 

 of View of Colour Vision. Part I. (J. C. Mottram, M.B., and 

 F. W. Edridge Green, M.D., F.R.C.S.)— The Food Requirements 

 of a " Normal " Working-class Family (Sir Henry Thomp- 

 son, K.B.E., M.D., Sc.D.). 



POPULAR SCIENCE : The 34 Supermagic Square (Brigadier- 

 General F. J. Anderson, C.B.). 



NOTES: The late Sir Alexander Pedler, CLE., F.R.S.-Cd. 9011 

 (C. Mereier, M.D., F.R.C.P.) — The Future of Geophysics in 

 Great Britain (H. S. J.) The Commencement of the Astro- 

 nomical Day (H. S. J.)— The State, Science, and Agriculture 

 (G. W. Harris)-British Scientific Products Exhitaition-The 

 Carnegie Trust for the Universities of Scotland (Prof. Soddy, 

 F.R.S.)— The Awakening East Brains and Bravery— Notes 

 and News (D. Orson Wood, M.Sc). 



ESSAYS: Science and Industry (Prof. R. A. Gregory). 



ESSAY-REVIEWS : Some New Aspects of Colloid Chemistry 

 (I. Jorgensen, D.I.C.)- Mechanism and Vitalism (J. C. Gregory, 

 B.Sc.)— Modern Spiritualism (W. A. Slater)- A New American 

 University (P. E. B. Jourdain). 



REVIEW'S: Theory of Functions of a Complex Variable-In- 

 finitesimal Calculus- Globular Clusters-Electricity— Light- 

 Colloid Chemistry— Lecithin and Allied Substances -Volcanic 

 Studies— Woody Plants Rubber -Soil Biology- Organic Evolu- 

 tion—Moth Borers— Sir Colin C. Scott Moncrieff— and other 

 Reviews. 



EDITOR 



SIR RONALD ROSS, K.C.B., K.C.M.G., F.R.S., N.L., 

 D.Sc, LL.D., M.D* F.R.C.S. 



LONDON : JOHN MURRAY, ALBEMARLE STREET, W. 



Price 51- net 

 VOL. XIII 



