An exhibition of medical curiosities

The Royal Society of Medicine currently has an exhibition in its library of books from its collection detailing often very odd ideas about how medicine works. It’s mainly a collection of books and display cards, and it’s the stories that those display cards tell that is the real pleasure of the exhibition.
Some letters from Sigmund Freud after he was granted an Honourary Fellowship, and his “boyish” reply asking if he could put any letters after his name, such as HFRSM. T