I just found this Old Sleuth pulp magazine from 1897 on Ebay. How could I possibly resist? The headline reads Grant McKenzie: A Boy's Battles and Struggles
Old Sleuth was a dime novel series of novellettes of about 80 pages that were published in New York from 1895 to 1898 by J.S. Ogilvie. They were primarily detective stories set in New York, though several are romances as well. Content is usually boys adventure, or detective/mystery, with some attention to gender and race. Advertisements at the front and back often include ads for "guides to courtship" and "guides to kissing".
I'm looking forward to seeing it when it arrives.