I ran a version of the cover of the March 1940 issue of Horror Stories before, but at the time I hadn’t figured out how to peek beneath many of these pulp covers. Now I have, and I wasn’t disappointed by what I found a few pages in, which looks pretty damn mad science to me:

The image is my composite of one that stretched across two pages, a common practice at Horror Stories in those days. “Wayne Rogers” was a pseudonym for a prolific pulp writer whose real name was Archibald Bittner (1997-1966), and not they guy who played Trapper John on M*A*S*H (who would have been seven years old when this story was published).

Neither the cover nor the interior illustrations for this issue are credited, unfortunately.

This issue of Horror Stories is available to read and download at the Internet Archive.