PLATE XXVII. 



"f 



Blood- 



Sertoli cell ressel 





. 



Head of 

 spermatozoon 



Fat nrannlen 



V ' ' 



V 



$m 



' -VvSyxt- 



"X A I 



' A. , , . -- : 



- 



-v^ .- 



,' 

 ' 







cell 

 emu 



'ionium in 



C 





Spermatoyonium 



Kpennaturyte \ 



T 



Basal membr 



V 



.*i'nm,to i ,ni l < ni 



ttetetoping ^ 



spermatozoa / 



f ^foadof 



tpermaivswm 



Y/. 



nttn per- 

 Htntozoon 



PIG. 176. Part of a transverse section of tubules from the testis of a white mouse. uno. 



