CIVIC BIOLOGY 



A TEXTBOOK OF PROBLEMS, LOCAL AND 



NATIONAL, THAT CAN BE SOLVED 



ONLY BY CIVIC COOPERATION 



BY 



CLIFTON F. HODGE, PH.D. 



1UOFESSOR OF SOCIAL BIOLOGY IX THE UNIVEK8ITY OF OREGON 

 AUTHOR OF "NATURE STUDY AND LIFE" 



AND 



JEAN DAWSON, PH.D. 



DEPARTMENT OF SANITATION, ROAKD OF HEALTH, CLEVELAND 

 FORMERLY OF MAdM.N u.n OOU KUE, CANADA, AND CLEVELAND NOKMAL 



SCHOOL; AUTHOR OK "THE BIOLOGY OF PIIYSA" AND 

 "BOYS AND GIRLS OF GARDEN CITY" 



It will t*ach 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 IK- training in the development of 

 cooperative good will. CHARLES W. ELIOT. 



GINN AND COMPANY 



BOSTON NEW YORK CHICAGO LONDOX 

 ATLANTA DALLAS COLUMBUS SAX FRANCISCO 



LIBRARY 



MOVERSITY OF CALIFORNIA 

 DAVIS 



