Genital Organs Male. 89 



Some of the thinnest sections should be mounted 

 under *003 cover glasses, as the developing sperma- 

 tozoa form very interesting objects for the highest 

 powers. 



EPIDIDYMIS AND VAS DEFEKENS 



Are hardened in the same way as testis, and epididy- 

 mis is generally hardened and cut with the testis. 



Stain with logwood. 



Examine the columnar epithelial cells of the epididy- 

 mis with very long ciliary processes. With a good 

 object glass of moderate power these processes can be 

 seen to be continuous with the longitudinal striation in 

 the body of the cell, and can be traced by careful 

 focussing through the striated line at the margin of the 

 cells. 



PKOSTATE, GLANS, ETC. 



These can all be hardened in chromic acid mixture 

 in the usual manner. The glans may be placed in gold 

 chloride for two hours and then hardened in spirit, 

 after which longitudinal sections will show the nerve 

 structures. The glans of a small animal hardened in 

 this way and cut longitudinally, will show the differ- 

 ence between the epithelium of the mucous surface and 

 that in the meatus and commencement of the urethra ; 

 it will also show large bundles of medullated nerves 

 arranged in a peculiar manner, and many other things 

 worth studying. 



