Sir Arthur Conan Doyle referred to "baritsu, or the Japanese style of wrestling" in one of his superb Sherlock Holmes stories (The Complete Sherlock Holmes: All 4 Novels and 56 Short Stories). He was almost correct. E. W. Barton-Wright was teaching a form of ju-jitsu in England at this time. He combined it with other self-defence elements and named it, immodestly, after himself. Hence, the name "Bart-itsu."
This charming volume (The Sherlock Holmes School of Self-defence: The Manly Art of Bartitsu: As Used Against Professor Moriarty (Hardback) - Common) combines some of Barton-Wright's articles about self-defence with a series of photographs of the author dealing with various opponents. Although the Victorian thug was not armed with a pistol or revolver, he was apparently perfectly willing to use knives, fists, quarter-staves, and various kinds of walking sticks in his attacks. Bartitsu consists in large part of foiling these attacks using your own waking stick or cane.
After reading this book, you too will be ready to beat off roughs, toughs, footpads, and other assailants using your cane, walking stick, or bicycle. Yes, this book even has an appendix on how to protect yourself when assaulted while riding a bicycle. And the ruffians will not get off lightly either. Assailants are punched in the head and chest, they have their arms and legs broken, and are threatened with throttling and "whatever punishment you see fit to apply to him."
The author, as a sort of bonus I suppose, adds a few explanations of various feats of strength that you can perform for the amusement of your friends, if your friends are amused, for example, at the sight of a person standing on your chest while you are lying in mid-air supported only by two chair backs. (If so, you might also consider acquiring a better class of friends.)
All in all, this is an interesting and amusing little book with nice production values. But do be careful of uncivilized brutes that carry firearms!