Bui.L. ToRREY Club, 30. 



Pi..^H 18 



15 



^ 



') ^ 



18 



24 



29 



30 



•» 



20 



21 





25 



>'. 



28 



26 



ill 



TTl 



SI 



32 



33 



SPERMATOGENESIS OF HYBRID PEAS. 



