is as honorable as he is wealthy. For my part, I do not understand how he came to place such confidence in the 'Yankee' doctor, who had to me the air of an adventurer; but he took him to his home, made him a member of his family, and before I left Acapulco, I heard that Don Miguel had given him for a wife his only daughter, a beautiful girl, who could have had her choice of the proudest young bloods in this region." It may be imagined with what interest Mr. Burton listened to the story thus unconsciously revealed by the chatty Mexican. He at once, as by prescience, saw his man in this fortunate Dr. Seltzer, who had registered his name Mr., not Dr., on the passenger-list, and which name was among those that the detective had selected as suspicious. (I interrupted my friend's narrative here to explain the matter of the bank-notes which he had exchanged for specie with a passenger, but found that Mr. Burton already knew all about them.) Edging gradually into the conversation, Mr. Burton, with his tact and experience, was not long in drawing from the group a description of the personal appearance of Dr. Seltzer, along with all the facts and conjectures relating to his history since his connection with Don Miguel. Everything he heard made "assurance doubly sure;" and there was no time to be lost in deciding upon the course to be pursued in this unexpected doubling of the chase. To get off at Acapulco was a matter of course; but what to do with the remainder of his party he could not at first determine. He knew that I would be eager to accompany him; yet he feared that, in some way, should we all land and take rooms at any of the hotels, the wily Doctor Seltzer, doubtless always on the alert, might perceive some cause for alarm, and secure safety by flight. To go alone, under an assumed name, in the character of a scientific explorer of mines, seemed to him the surest and most discreet method of nearing the game; and to this resolve he had come before he sought us out to announce his intention of stopping at Acapulco, while leaving us to pursue our voyage without him. CHAPTER VI. AT LAST--AT LAST.