454 Development and Vascularization of the Testis 
plexus. These veins are about twice the size of the branches from the 
capsular artery and show an intricate anastomosis. Upon cross section 
of a doubly injected gland some seven or eight perpendicular descending 
arteries will appear and perhaps eight to twelve collecting veins. 
The extreme vascularity of the gland is shown in Fig. 10, which is 
an arterial and capillary injection made with India ink and cleared by 
Fic. 9. A semi-diagrammatic representation of the circulation in the left 
testis of the adult pig. xX 1%. H., globus minor of the epididymis. The 
arrows indicate the course of the blood stream. The arteries and capillaries 
are red; the veins, blue. 
the modified Schultze method. The anastomoses around the tubules are 
so profuse that they give the section an appearance of ancient mail 
armor. 
A microscopic section of the injected testis, stained and cleared by 
the Van Wijhe method shows beautifully under low power the manner in 
See as 
