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LABORATORY DIRECTIONS^^^ 

 IN GENERAL ZOOLOGY 



-^**^ Q\ WINTERTON C. CURTIS 



\ ^ \ ^^'^■f^^^'^ ^f Zoology, University of Missouri 



JO 



RARYi^P AND 



^\4!Ass>X^ MARY J. GUTHRIE 



\y ^ X Professor of Zoology, University of Missouri 



THIRD EDITION, REVISED 



^ NEW YORK 



\ JOHN WILEY & SONS, Inc 



London: CHAPMAN & HALL, Limited 

 1939 



