EXPLORING THE MOUNTAINS 141 which the map-maker observes topographical points and records them on his field book, than on the number of the instruments he uses. After having done a particular region, our carto- grapher would climb with his companions to the top of a hill or mountain, and, setting in front of himself his field drawings laid horizontally in keeping with his compass, he would ask them where was such and such a place passed by and noted on the way? The Indian is a born topographer. After a few seconds’ study, his people would unhesitatingly point out the place enquired about, which indication, in practically every case, coincided with the position of that par- ticular part of Morice’s survey. People who are not familiar with the wonderful capacity of the Indians for finding their bearings will perhaps not appreciate the value of such a checking of our geographer’s work. But he knew better. Some of these mountains took considerably more than one day to climb from base to summit. Our explorer remembers, not without a thrill, the many dangers he braved in such operations. Once he was forced to desist because of his companions who felt too dizzy to continue, a circumstance which only half annoyed him, he now slyly confesses, as he was rather pleased to have an excuse for going down, being dizzy himself, but averse to admitting it. Another time he spent a night lit by brilliant stars which no tent hid from view, tied up at the waist to a sapling which grew by something like a notch, or shallow cavity, on an exceedingly steep slope, just above the tree limit. Numerous were also the times when he found him- self either in the clouds or over them. Above him was the clearest of azure skies: below, an ocean of vague and dense fog. All the material thus carefully