Sunday Morning Bonus Pulp: Action Stories, September 1926
I don't believe I've ever read anything by Kenneth Gilbert, but I love the title of his yarn in this issue of ACTION STORIES: "The Menace of Mastodon Valley". I'd read that right now if I had a copy. The only other authors in this issue I'm familiar with are Victor Rousseau and Frank Richardson Pierce, both consistently entertaining pulpsters. I'll bet all the stories are pretty good, though.