Sassafras. Fig. 4.—Small portion of meditullium of root.

Fig. 4.—Small portion of meditullium of root. Magnified 370 diameters.
a, a, pitted ducts;
b, b, wood cells;
c, medullary ray cell.

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