NEW-WORLD SCIENCE SERIES 



Edited by John W. Ritchie 



SCIENCE FOR BEGINNERS 



By Delos Fall 

 TREES, STARS, AND BIRDS 



By Edwin Lincoln Moseley 



SCIENCE OF THE EVERYDAY WORLD 

 By Carleton IV. Washburne 



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 



