SCIENCE PROGRESS 



A QUARTERLY REVIEW OF 

 SCIENTIFIC THOUGHT, WORK & AFFAIRS 



No. 44. APRIL 1917 



CONTENTS 



ARTICLES: Polymorphism. F. D. Chattaway, F.R.S. 



Salt and the Age of the Earth. G. W. Bui man, M.A., B.Sc. 

 Osmotic Pressure In Animals and Plants. W. R. G. Atkins, 



Sc.D M F.I.C. 

 The History of Comparative Anatomy. Part I. A Statistical 



Analysis of the Literature. Prof. F. J. Cole, D.Sc, and N. B. 



Eales, B.Sc. 



POPULAR SCIENCE: Scratches on Flints. J, Reid Moir, F.R.A.I. 



ESSAY - REVIEWS : Dr. Merz's Phenomenalism (Joshua C. 

 Gregory) -Roscoe and Meldola (F. A. Mason) 



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

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

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

 Chemistry (P. Haas)-Geology (G. W. Tyrrell) -Botany (E. J. 

 Salisbury)— Zoology (C. H. O'Donoghue)— Anthropology (A. G. 

 Thacker) 



NOTES : Sir Alfred Keogh, G.C.B.— White Fakirs— Learned Pro- 

 crastination—Association of Public School Science Masters 

 (C. L. Bryant) -Indian Science Congress (C. S. Gibson)— Port 

 Sunlight and the Housing Problem— Committee on the Neglect 

 of Science— Neglect of Science— Vocational Education— Bos, 

 Probus and Paciflcus— Roman Brigandage, New Style— Pam- 

 phlets and Periodicals— This and That 



ESSAYS : The Art of Perpetuation (Bruce Cummings)— Organi- 

 sation of Scientific Literature (P. E. B. Jourdain) 



REVIEWS: Discovery— Fundamental Sources of Efficiency— 

 Birth-Time of the World -William Oughtred- Combinatory 

 Analysis— Ruler and Compasses— David Gill— Dante and the 

 Early Astronomers— Atoms— Electricity from Hot Bodies- 

 Physics and Chemistry of Colloids— Fish— Microbiology— 

 Mosquitoes and Disease- Indian Museum 



EDITOR 



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

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



LONDON: JOHN MURRAY, ALBEMARLE STREET, W.i. 



Price 51- net 



VOL. XI 



