NEW-WORLD SCIENCE SERIES 



Edited by John W. Ritchie 



SCIENCE FOR BEGINNERS 



By Delos Fall 

 TREES, STARS, AND BIRDS 



By Edwin Lincoln Moseley 

 COMMON SCIENCE 



By Carleton W. Washbume 

 HUMAN PHYSIOLOGY 



By John W. Ritchie 

 SANITATION AND PHYSIOLOGY 



By John W. Ritchie 



LABORATORY MANUAL FOR USE WITH 

 "HUMAN PHYSIOLOGY" 



By Carl Hartman 



EXERCISE AND REVIEW BOOK IN BIOLOGY 



By/. G. Blaisdell 

 PERSONAL HYGIENE AND HOME NURSING 



By Louisa C. Lippitt 

 SCIENCE OF PLANT LIFE 



By Edgar Nelson Transeau 



ZOOLOGY 



By T. D. A. Cockerell 

 EXPERIMENTAL ORGANIC CHEMISTRY 



By Augustus P. West 



