"Collected for last days of drawing class at back. Slabs, Xprets, Whole nuts, Sections". 22 October 1939 – 13 February 1941. Sketchbook containing pencil drawings, some in color. 88 pages (84 images).
A lecture given in Keith Thomson's honor, Dr. Prum explains why Darwin's "aesthetic theory of sexual selection" is a dangerous idea for the theory of evolution.