1954: Margaret Mead’s LSD Memo
A memo written by the anthropologist Margaret Mead in September, 1954 detailing her preliminary thoughts and research on LSD (from the Margaret Mead papers, Library of Congress).
1957: “Psychoanalysis and LSD-25: Foundations for a combined therapeutic technique”
Luisa de Álvarez de Toledo discusses the use of LSD in "combined therapy,” focusing on how LSD facilitates psychological insights.