Reading texts involve all of the senses. (And no, I don't mean that in some post-post-modern way...)
In early twentieth-century anatomical sciences, it was important to "read" the bones by seeing specimens as close to "real" as possible. Stereoscopic plates allowed anatomists to see and experience the bones in ways that a flat, two-dimensional drawing wouldn't have allowed.
Reading the fossils in 3D a la 1911 technology is brilliant.