R. Austin Freeman, The Uttermost Farthing — I. The Motive Force (1914)
“ Each reposed in a little velvet-lined compartment and each was distinguished by a label bearing a number and a date.I looked up at Challoner and found him regarding me with an inscrutable and hideous smile."These are very extraordinary productions, Challoner," said I. "What are they? And what are they made of?""Made of, my dear fellow?" said he. "Why, the same as you and I are made of, to be sure.""Do you mean to say," I exclaimed, "that these little heads are made of human skin?""Undoubtedly. Human skin and human hair. What else did you think?" ”
