BOOK III. 



69 



A— The " beginning " (origo). B — The " end " (finis). C — The " head " {caput). 



D — The " tail " (cauda). 



A vena dilatata has only a " beginning " and an "end," and in the place 

 of the " head " and " tail " it has two sides. 



A — The "beginning." B— The "end." C, D— The "sides.' 



