PLATE C. 



**' 





25 



' 



,' "^.'W! 

 j~ 



*, .- , 

 : '. - ;'.. *..*' vj 



lir.'-'V'-^'f- '''' 



mm 



29 



28 



35 



31 32 33 34 36 



PLATES A, B, AND C. SUCCESSIVE STAGES IN THE SPERMATOQENESIS OF SCHISTO 



CERCA DAMNIFICA. 



469 



