1851-1900

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Caapi and Niopo in “On Some Remarkable Narcotics of the Amazon Valley and Orinoco”

Caapi and Niopo in “On Some Remarkable Narcotics of the Amazon Valley and Orinoco”

Richard Spruce on ayahuasca, yopo/paricá, and Amazonian medicine-men

Richard Spruce's nineteenth-century account of caapi, aya-huasca, niopo, and paricá, based on field observations in the Uaupés, Orinoco, Rio Negro, Napo, and Pastasa regions. The excerpt records plant identifications, preparation methods, visual effects, ceremonial uses, and the role of payes in curing and divination.

Note on Nitrous Oxide, from “On Some Hegelisms”

Note on Nitrous Oxide, from “On Some Hegelisms”

The note William James added to his essay "On Some Hegelisms" in Mind (1882), reporting nitrous oxide experiments he made after reading Blood's pamphlet. He describes a sense of metaphysical illumination and reconciliation of opposites that fades on recovery into "a few disjointed words and phrases." James reprinted the note in The Will to Believe (1897), and Charles Tart excerpted it in 1969 as "Subjective Effects of Nitrous Oxide."

Ueber Anhalonium Lewinii

On Anhalonium Lewinii

Berlin pharmacologist Louis Lewin (1850–1929) reports on "Muscale Buttons" received from Parke, Davis & Co. during a visit to the United States in 1887. The botanist Paul Hennings identified the dried cactus as a new species and named it Anhalonium Lewinii after him, and Lewin describes a crude base he called anhalonine and its strychnine-like convulsant effects in frogs, pigeons and rabbits. Hosted here are the introduction, the preliminary chemistry, and the full section on the drug's effects, with the historical survey of cacti omitted.

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

On Pellote (Second Communication)

Leipzig pharmacologist Arthur Heffter (1859–1925) reports his separation of five alkaloids from mescal buttons, among them mescaline ("Mezcalin"), and a series of self-experiments made between June and November 1897. Testing the whole drug, its resin, the mixed alkaloids and each isolated base in turn, he found that 0.15 g of mescaline hydrochloride alone reproduced the visions, slowed pulse, dilated pupils and loss of time sense produced by the cactus. Hosted here are the description of mescaline and its salts and the whole of section VI on the drug's action in humans.