Arthur Conan Doyle,
The Brown Hand
(1899)
“ And so I found myself back at Rodenhurst before dinner with this curious outcome of my day in town. I still said nothing to Sir Dominick, but I slept that night in the laboratory, and I placed the Lascar's hand in one of the glass jars at the end of my couch. So interested was I in the result of my experiment that sleep was out of the question. I sat with a shaded lamp beside me and waited patiently for my visitor. This time I saw him clearly from the first. He appeared beside the door, nebulous for an instant, and then hardening into as distinct an outline as any living man. ”
