THE PROGRESSIVE SCIENCE SERIES 



THE PROBLEM OF AGE, 

 GROWTH, AND DEATH 



A Study of Gytomorphosis 



Based on Lectures at the Lowell Institute, March 1907 



By CHARLES S. MINOT, LL.D. (Yale, Toronto), D.Sc. (Oxford) 



James Stillman Professor of Comparative Anatomy in the Harvard Medical 

 School ; President of the Boston Society of Natural History 



With numerous Illustrations. 6s. net 



This book deals with a series of important biological problems, yet it is 

 essentially a study of a single phenomenon — the increase of the amount of 

 protoplasm. The subjects discussed have received, in part, hitherto relatively 

 little attention from biologists. The results of the author's investigations, 

 extending over thirty years, are therefore of exceptional interest. 



CONTENTS 



Old Age — Cytomorphosis : the Cellular Changes of Age — Rate of Growth — 

 Differentiation and Rejuvenation — Regeneration and Death — The Four Laws 

 of Age — Growth of Rabbits — Growth of Chickens— Death of Protozoa — 

 Longevity of Animals— Theory of Life — The Age-reckoner — Index. 



INFECTION AND IMMUNITY 



With Special Reference to the Prevention of Infectious 



Diseases 



By GEORGE S. STERNBERG, M.D. 

 Surgeon-General (retired) U.S. Army 



6s. net 



That infectious diseases continue to prevail, and to claim hundreds of 

 thousands of victims annually, is largely due to the fact that the general public 

 has not yet been educated upon these subjects. In this volume an attempt 

 has been made to state the main facts, as far as they have been established, 

 with the practical object in view of indicating the measures necessary for the 

 prevention of infectious diseases. 



CONTENTS 



Part I. General Remarks — Disease Germs — Channels of Infection — Sus- 

 ceptibility to Infection — Disinfection — Tests of Disinfection — Disinfection by 

 Heat — Sunlight as a Disinfectant — Disinfection by Gases — Chemical Disin- 

 fectants — Natural Immunity — Acquired Immunity — Antitoxins — Index. 

 Part II. Consists of Twenty Chapters, each dealing with one of the more 

 Important Infectious Diseases. 



