[stamped, FEB 7 1974] Feb 6 1974 Dr. Lederberg A Kornberg Dear Josh: Thanks for correcting those enormous footnotes to history. It could become a burdensome job and I am discouraged from entering this field of "scholarship". Attached are two semi-popular accounts that should be understandable by Simon (note p. 8 in the 1971 paper and the section in the Sci. Amer. one). Had he read the Sci. Amer. account he would surely have realized the biochemist's view of DNA in the mid-50's, even after W-C. Arthur [written in different handwriting, Kornberg]