very great liberties! I have never been so insulted in my life."
He seemed more interested than annoyed at my outbreak.
"Round-headed," he muttered. "Brachycephalic, grey-eyed, black-haired, with suggestion of the negroid. Celtic, I presume?"
"I am an Irishman, sir."
"Irish Irish?"
"Yes, sir."
"That, of course, explains it. Let me see; you have given me your promise that my confidence will be respected? That confidence, I may say, will be far from complete. But I am prepared to give you a few indications which will be of interest. In the first place, you are probably aware that two years ago I made a journey to South America—one which will be classical in the scientific history of the world? The object of my journey was to verify some conclusions of Wallace and of Bates, which could only be done by observing their reported facts under the same conditions in which they had themselves noted them. If my expedition had no other results it would still have been noteworthy, but a curious incident occurred to me while there which opened up an entirely fresh line of inquiry.
"You are aware—or probably, in this half-educated age, you are not aware—that the country round some parts of the Amazon is still only partially
