THE NEXT GENERATION 



A STUDY IN THE PHYSIOLOGY 

 OF INHERITANCE 



BY 



FRANCES GULICK JEWETT 



AUTHOR OF THE FOLLOWING BOOKS OF THE GULICK HYGIENE SERIES 



"GOOD HEALTH," "TOWN AND CITY," "THE BODY AT WORK," 

 "THE BODY AND ITS DEFENSES," AND "CONTROL OF BODY AND MIND" 



GINN AND COMPANY 



BOSTON ■ NEW YORK • CHICAGO • LONDON 

 ATLANTA • DALLAS • COLUMBUS • SAN FRANCISCO 



