Soma: Divine Mushroom of Immortality

Dated 1968 but issued in 1969, the first edition was 680 numbered copies on handmade paper at $200, John Brough noted in his 1971 review.

John Brough, 'Soma and Amanita muscaria', Bulletin of the School of Oriental and African Studies 34.2 (1971), 331-362, note 1

R. Gordon Wasson's 1968 book identifying the Vedic ritual drink soma as the fly agaric mushroom.

Sources2 sources

Primary source

R. Gordon Wasson, Soma: Divine Mushroom of Immortality, 1968, Part One, 'The Two Forms of Soma', p. 25Wasson's thesis that soma was the fly agaric and that the Rig Veda knows a second form of Soma taken as urine.
Taken in the urine of the person who has ingested the fly-agaric

Scholarship

John Brough, Soma and Amanita muscaria, 1971, BSOAS 34.2, 331-362, note 1That the first edition, Mouton/Harcourt [c1968] published 1969 at $200, was limited to 680 numbered copies on handmade paper.
Edition limited to 680 numbered copies.