| 1. |  | Letter from Warren Weaver to Linus Pauling, 1934 | Weaver, Warren; Pauling, Linus, 1901-; Hemoglobin -- Structure; | Letter from Warren Weaver to Dr. Linus Pauling in regards to the Rockefeller Foundations $10,000, 3 year research grant to study hemoglobin and molecular structures. |