Pauling, Linus, Chemist, Nobel prize winner for chemistry in and the Nobel Prize for Peace, 1901-1994. Autogr. mansucript with signature. No place and date. 2 pp. 4to.

Part of a scientific essay, with heading "Chapter 15 - Molecular Biology". Witha brief survey of the history of molecular biology. Ends with the paragraph: "Molecular biology has developed very rapidly during the last quarter century; only a vew aspects of the subject can be described in this chapter:"