Sassafras. Fig. 1—Transverse section of the root-bark

Fig. 1—Transverse section of the root-bark of sassafras taken from a root about 2 inches in diameter. Magnification about 50 diameters.
a, cork;
b, b, b, volatile oil cells;
c, c, cells containing tannic matters;
d, medullary ray;
e, e, bast fibres;
f, cambium.

This image is from the article Structure of Sassafras in the June issue of the American Journal of Pharmacy, 1895.