Part 1: Being a Reprint from the Reminiscences of John Watson, M.D., Late of the Army Medical Department 1. Mr. Sherlock Holmes 15 2. The Science of Deduction 19 3. The Lauriston Garden Mystery 25 4. What John Rance Had to Tell 32 5. Our Advertisement Brings a Visitor 36 6. Tobias Gregson Shows What He Can Do 41 7. Light in the Darkness 46
Chapter 1