I told him that the maniac theory did not appeal to me very strongly. “Madness, to be sure, is often exceedingly cunning,” I said, “but it is hardly capable of such sustained masterfulness as our criminal has evinced.” “Look here, Doc,” Maitland said, breaking out suddenly, “I’ve an idea. Might not this fellow’s interest in cancers be due to his having one himself? Suppose you make a canvass of the specialists on cancer in Boston and vicinity, and see if any of them remember being consulted by a patient answering the description with which I will provide you. In addition to this I will insert an ad in the papers calling attention to a new method for the cure of cancer, and asking all interested to call at your office for further particulars. The plan does not promise much, still it may br

