418 J. E. BLOMFIELD. 
account is drawn, confirmed by my own observation as far 
as that has gone. 
The testis consists of a series of short tubes, which for 
want of a better name I have called Crypts (c.), which will 
be seen in a horizontal or transverse section to be arranged 
radially around the circumference of the gland. In the 
centre is an irregular sinus, into which these crypts open, 
but not in a radial direction ; before doing so, there is acon- 
siderable winding and twisting of each crypt (c.’). From 
this sinus, with various communications and branchings 
which constitute the intratesticular network of Spengel, 
the vasa efferentia (v. e.) run through the parenchyma of 
the gland to emerge at the mediad border slightly on the 
posterior surface. They unite together on the way, and 
sometimes give off short blind processes. This is the ex- 
tratesticular network, all the branches of which unite in a 
canal which is found on the mediad border of the kidney 
(1.c.). This is Spengel’s “lang canal,” which runs along 
the mediad posterior, or dorsal surface of the kidney. 
