Crystals of pipitzahoic acid.

Crystals of pipitzahoic acid, magn. 160 diam. Prepared by precipitating the alcoholic solution with water / by evaporating the alcoholic tincture of the root.

This image is from the article "On the Presence of Pipitzahoic Acid in the Perezias ..." in the American Journal of Pharmacy, 1884.

Crystals of pipitzahoic acid.