Agricola, Georgius - De re metallica

Agricola, Georgius, De re metallica, 1912/1950

35[Figure 35]

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.

36[Figure 36]

A—THE “BEGINNING.” B—THE “END.” C, D—THE “SIDES.”