Osborn’s view of the progressive evolution of the brontotheres. Notice the references to the “geneplasm” at left, which Osborn interpreted as spontaneously giving rise to new adaptations. From Osborn (1935).

Every now and then I like taking a break from the latest technical papers and conference volumes to read some vintage scientific work. Oftentimes this is an enjoyable experience, I love the history of science, but the evolutionary work of H.F. Osborn is frustratingly opaque. While Osborn certainly was one of the most prominent figures in early 20th century paleontology he cultivated some very odd ideas which he made all the more confusing through his attempts to bring paleontology, genetics, chemistry, and physics together within evolutionary theory.

A good