MALE GERM CELLS IN NOTONECTA 



ETHEL NICHOLSON BROWNE 



PLATE 2 



t 

 # 



15 



. • • 



# 



16 



///h 



18 



nil! 



I i m 



17 



i(l 





19 



A 



/f/ii\\\ Ml''// 



21 



^1 in vll'nRx /#'"' 



«• 



\\'iV/: 



\wili 



. •• 



C 20 



• ^ • ^^ 24 



22 



105 



Browne, del. 



