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 caravan waited. I instructed him to guide himself back by the rope, in case of failure; in case of success, he was to give the rope a series of violent jerks, whereupon the Expedition would go to him at once. He departed, and in two minutes had disappeared among the trees. I payed out the rope myself, while everybody watched the crawling thing with eager eyes. The rope crept away quite slowly, at times, at other times with some briskness. Twice or thrice we seemed to get the signal, and a shout was just ready to break from the men's lips when they perceived it was a false alarm. But at last, when over half a mile of rope had slidden away it stopped gliding and stood absolutely still,—one minute,—two minutes,—three,—while we held our breath and watched. Was the guide resting? Was he scanning the country from some high point? Was he inquiring of a chance mountaineer? Stop,—had he fainted from excess of fatigue and anxiety?

This thought gave us a shock. I was in the very act of detailing an expedition to succor him, when the cord was assailed with a series of such frantic jerks that I could hardly keep hold of it. The huzza that went up, then, was good to hear. "Saved! saved!" was the word that rang out, all down the long rank of the caravan.

We rose up and started at once. We found the route to be good enough for a while, but it began to grow difficult, by and by, and this feature steadily increased. When we judged we had gone half a mile, we momently expected to see the guide; but no, he was not visible anywhere; neither was he waiting, for the rope was still moving, consequently he was doing the same. This argued that he had not found