Anhalonium lewinii, Mescal Button.

Mescal is a strong intoxicating spirit distilled from Pulque fuerte. Pulque is made from the Agave Americana of Mexico, locally known as Maguey and is the national beverage of Mexico. Indians call it Peyote. It weakens the heart, produces insanity. Its most striking effects appear in the auditory nerve for it makes each note upon the piano a center of melody which seems to be surrounded by a halo of color pulsating to the rhythm of the music (Hom. World). Causes a form of intoxication accompanied by wonderful visions, remarkably beautiful and varied kaleidoscopic changes, and a sensation of increased physical ability. Also visions of monsters and various gruesome forms. A cardiac tonic and respiratory stimulant. Hysteria and insomnia. A remedy for brainfag, delirium, megrim, hallucinations, with colored brilliant visions. Motor inco-ordination. Extreme muscular depression; increased patellar reflex. Paraplegia.
Mind.--Loss of conception of time. Difficult enunciation. Distrust and resentment. Lazy contentment.
Head.--Aches, with disturbed vision. Fantastic, brilliant, moving colored objects. Affected by beating time. Pupils dilated, vertigo, brain tired. Polychrome spectra. Exaggerated reverberation of ordinary sounds.
Dose.--Tincture.

Boericke's Materia Medica, 1901, was written by William Boericke. Excerpt: The Tinctures.