Osmond, Humphrey

Humphrey Osmond, Understanding Understanding (New York Harper Row, 1974). 

Osmond, J.K., Cowart, J.B. Humphreys, C.L. and Wagner, B.E., Radioelement migration in natural and mined phosphate terrains. Final Report PB-86-223765/XAB. Univ. Tallahassee, Florida State University, USA, 1987. 

The Hallucinogens, by Abram Hoffer and Humphrey Osmond, the foremost and original authorities on the psychedelics. Although this Academic Press book retails for 25, perhaps you can pick up a copy at a local library. 

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