LABORATORY PROBLEMS 



IN 



CIVIC BIOLOGY 



BY 



GEORGE WILLIAM HUNTER, A.M. 



HEAD OK THE DEPARTMENT OF BIOLOGY, DE WITT CLINTON 



HIGH SCHOOL, CITY OF NEW YORK 



AUTHOR OF "elements OF BIOLOGY," "ESSENTIALS OF 



BIOLOGY," "a civic BIOLOGY," ETC. 



AMERICAN BOOK COMPANY 



NEW YORK CINCINNATI CHICAGO 



