Stanislav Grof

Self

Albert Hofmann

Self

Humphry Osmond

Self

Ram Dass

Self

Duncan Blewett

Self

Abram Hoffer

Self

Alfred M. Hubbard

Self

Laura Archera Huxley

Self

Ralph Metzner

Self

Aldous Huxley

Self

Timothy Leary

Self

Myron Stolaroff

Self