CIVIC BIOLOGY 



A TEXTBOOK OF PROBLEMS, LOCAL AND 



NATIONAL, THAT CAN BE SOLVED 



ONLY BY CIVIC COOPERATION 



BY 



'CLIFTON F. HODGE, Pn.D. 



PROFESSOR OF SOCIAL BIOLOGY IX THE UNIVERSITY OF OREGON 

 AUTHOR OK "NATUKE STUDY AND LIFE" 



AND 



JEAN DAWSOX, PH.!). 



DEPARTMENT OF SANITATION, BOARD OF HEALTH, CLEVELAND 



FORMERLY OF MACDONAL1) COLLEGE, CANADA, AND CLEVELAND NORMAL 



SCHOOL; AUTHOR OF "THE BIOLOGY OF PHYSA" AND 



"BOYS AND GIRLS OF GARDEN CITY" 



It will teach only such uses of authority as 

 are necessary to secure cooperation of several or 

 many people to one end ; and the discipline it will 

 advocate will be training in the development of 

 cooperative good will. CHARLES W. ELIOT. 



GINN AND COMPANY 



BOSTON NEW YORK CHICAGO LONDON 

 ATLANTA DALLAS COLUMBUS SAN FRANCISCO 



