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Perezia. Crystals of pipitzahoic acid.

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Gallery: 
AJP 1880-1889
Acourtia
Botanical name: 
Acourtia

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.

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