THE AOSTA. 



. thy- 



347 



Fig. 103. — The Aoeta, with its Main 

 Branches in the Thobax and Right 

 Abm ; Ventral View ; x 1. A. Origin 

 OP THE Carotid Arteries ; x 1. B, C. 

 Veins with Valtes ; Quain, A, II, 174. 



The Wickersheimer's fluid prevents the brittleness that is so objec- 

 tionable in plaster injected vessels that are dried. 



B and C — Preparation. — B. A segment of the V. jugularis 

 externa about 5 cm. long was slit lengthwise and placed in water, 

 and the valves floated up by blowing into the little pockets with a 

 blow-pipe. 



0. The external jugular or femoral vein was injected peripherad 



