Once voted Adventure Magazine's most popular author, W.C. Tuttle introduced the world to one of his longest-running—and most popular—series characters, Henry Harrison Conroy, in the pages of Argosy.
Collected here are the first four stories: “Henry Goes Arizona,” “With the Help of Henry,” “The Sherlock of Sageland,” and “The Diplomacy of Henry.”
It's Volume #4 in The Argosy Library.