Folder L.1. "The application of X-rays to the study of the structure of matter", with a manuscript note "Draft notes for an article on X-rays for Penguin Science News (never written)". Also included are correspondence June, September 1946 on Kendrew's possible involvement with Penguin Science News as editor or contributor, and a 1 page manuscript draft "Preliminary sketch of article on scientific method and philosophy" n.d. but probably of same period.…