SCIENCE PROGRESS 



A QUARTERLY REVIEW OF 

 SCIENTIFIC THOUGHT, WORK & AFFAIRS 



No. 47. JANUARY 191 8 

 CONTENTS 



RE ? EN J A DV ^NCES IN SCIENCE: Mathematics (P. E. B. 

 Jourdain) -Astronomy (H. S. Jones)- Physics (J Rlee)- 

 Physieal Chemistry (Prof. W. C. MeC. LewTs7D.Sc.) -Inorganic 

 Chemistry (C. S. Garrett, D.Se.)-Organie Chemistry (P. Haas, 

 D.Sc.) - Geology (G. W. Tyrrell) - Mineralogy and Crystal- 

 lography (A. Scott, D.Sc.) Botany (E. J. Salisbury, D.Sc.)- 

 Plant Physiology (F. Kidd, D.Sc.)-Zoology (C. H. O'Donoghue, 

 D.Sc.)-Anthropology (A. G. Thacker) »«««. 



AR JnH L p ®; TS°^ e ?f lty ™ K qUlds < Jo « e Ph Reilly, M.A., D.Sc, 



2™» n r 2f"o W - £l R ? e ^ M ' i b ) - The A « e and Apea L aw (James 

 Small, M.Sc., Ph.C.)-The Hypophysis Cerebri : Its Structure 

 and Development (K. M. Parker, D.Sc.)-Pre-Pal»olithie Man 

 in England <J. Reid Moir, P.R.A.I.) wuwiw man 



POP .y^ A 5r SCIENCE : The Structure of Matter. Part I. (Prof. 

 W. C. Mc. Lewis, D.Sc.) 



CORRESPONDENCE: The Abolition of Slums (Lord Lever- 

 hulme) 



N °£fSi £K , /f! 0lf VOn ****** (F. A. Mason, Ph.D.)-Industrlal 

 Research (A Correspondent)- A House of Poetry- Poland and 

 Poetry-Notes and News (D. Orson Wood, M.Sc.) 



ESSAYS: The Electrical Basis of Cohesion (H. Chatley, D.Sc.) 



ESSAY-REVIEWS: Real Educational Reform (P. E. B. Jourdain) 



RE iXI E iIY®L* Ma i h f ma , tlCal Thcop y of Populatlon-A Course In 

 Mathematical Analysis-The Continuum-The Electron- Con- 

 tinuity-Dynamics- Optical Theories-A Class-book of Organic 

 Chemistry -A Bibliography of British Ornithology - The 

 Biology of Dragon-flies-The Biology of Waterworks-Fossil 

 Plants- Modern Man and his Forerunners- The History of 

 Medicine-The Growth of Medicine-Health and the State- 

 Tuberculosis-Shell-shock- The Passing of the Great Race- 

 Thrice Through the Dark Continent - The Public School 

 system* 



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. 



VOL. XII ^^ 5 >- Wt 



