London: John Murray, 1952. First printing thus, in one volume.
From the creator of Sherlock Holmes came a steady stream of other insane adventure stories that are less well-known now.
Professor Challenger's adventures, most famously The Lost World, are the precursor, along with H. G. Wells, of what is now called Science Fiction. Conan Doyle however, was happy to confine his stories to the scientifically possible, from facts that were being discovered in his time.
Hardcover with jacket, with fading to edges. 577 pages.