1898 HEFFTER, Karl Wilhelm Arthur (1859 – 1925)

Ueber Pellote. Beiträge zur chemischen und pharmakologischen Kenntniss der Cacteen. Zweite Mitteilung.

Isolation of mescaline, the active agent in peyote. One of the first scientific investigations of a psychedelic drug.

GMN 1890.1 · https://historyofmedicine.com/id/2517

1927 BERINGER, Kurt (1893 – 1949)

Der Meskalinrausch. Seine Geschichte und Erscheinungsweise.

The most comprehensive treatise on peyote and its active agent, mescaline, which was synthesized in 1919.

GMN 2086.1 · https://historyofmedicine.com/id/2567