BOOK III. 



69 



A THE " BEGINNING " (origo). B THE " END " (finis). C THE " HEAD " (caput). 



D THE "TAIL" (canda). 



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. 



