SCIENCE PROGRESS 



IN THE TWENTIETH CENTURY 



A QUARTERLY JOURNAL OF 

 SCIENTIFIC WORK AND THOUGHT 



NO. 40. APRIL 1916 



CONTENTS 



1. The Mathematical Theory of Organic Variability. James 



Johnstone, D.Sc, The University, Liverpool 



2. The Specific Characteristics of Vitality. Prof. D. P. Harris, 



M.D., B.Sc, F.R.S.C., The University, Dalhousie, Halifax 



3. The Natural History of Tumours. C. Mansell Moullin, M.A., 



M.D., F.R.C.S., Consulting: Surgeon, London Hospital 



4. The Knowledge of the Ancients regarding the Propagation 



of Disease by Flies and Rodents. Joseph Offbrd 



5. The Solution of Equations by Operative Division. Part III. 



Sir Ronald Ross, K.C.B., F.R.S., D.Sc. 



6. Essay-Reviews: Combinatory Analysis— The Interpretation 



Thereof (C). Mr. Balfour's Argument for Theism (Joshua 

 C. Gregory) 



7. Recent Advances in Science : Mathematics (P. E. B. Jourdain) 



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

 Chemistry (Prof. W. C. McC. Lewis)— Inorganic Chemistry 

 (C. S. Garrett)— Organic Chemistry (P. Haas)— Geology 

 (G. W. Tyrrell)— Zoology (C. H. O'Donoghue)— Anthropology 

 (A. G. Thacker) 



8. Correspondence: Logic and Illogic (Dr., Charles A. Mercier 



and W. H. "Winter). Science and Modern and Ancient 

 Languages (Prof. H. A. Strong). Bacterised Peat (Sir 

 Sydney Olivier, K.C.M.G., and Prof. T. B. Wood and Prof. 

 R. H. Biffen) 



9. Notes : Great Science and Little Science— Brainless Britain— 



The Punishment of Science— Experts and Official Experts 

 —The Incompetence of Novelists, Poets, Philosophers and 

 Theologians— Party Impolitics— Retaliation— The Neglect 

 of Science— The British Science Guild— and other Notes 

 10. Reviews: Life and Human Nature— What is Adaptation ?- 

 The Differential Essence of Religion— The Master-Key— 

 Transfinite Numbers— Collected Papers on Spectroscopy 

 —Catalysis and its Industrial Applications— wave-Motion 

 —Geographical Balkan Problems— African Game Animals 

 —Mimicry in Butterflies— Plant Breeding— Mind in Ani- 

 mals—Scottish Antarctic Expedition— The Antiquity of 

 Man— Prehistoric Art— and other Reviews 



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. 



Price 5j- net 

 vol. x 



