Osler and bookworms--the "Henry connection"

Insect bookworms were a little-known interest of Sir William Osler and F. P. Henry. Each man wrote an article on the subject, Osler's appearing thirteen years after that of Henry. Several unpublished communications regarding Osler's interest in bookworms are discussed. A recently-discovered 1903 inscription to Henry demonstrates Osler's early interest in bookworms and suggests that Henry may have been an important influence in generating that interest.