m'^ 



II HANDBOOK 



OF 



es^t:rtebrate zoology. ^' 



LABORATORIES A^'D SEASIDE WORK. 



BY 



W. K. 'brooks! Ph.D., 



ASSOCIATE IS BIOLOGY AND DrRECTOB OF THE CHESAPEAKE ZOOLOGICAI. LABORATORT 

 OF THE JOHNS HOPKINS UNIVEKSITT. 



^i6 



BO 

 S. E. CASSI 



OSTON: >&^ 



NO, PUBLISHER. ' 



1882. 



