114 Mackenzie’s Voyages manner with a discharge of fire-arms, after which they were regaled with plenty of spirits and cakes. Mackenzie’s surgical skill was again called into requisition. A youth with his thumb hanging by a strip of flesh as the result of the bursting of a gun, was in a fair way to die of blood-poisoning, since the wound was putrefying, and in an advanced stage of mortification. ‘The Indian doctors had exhausted all their arts of conjuring without avail. Mackenzie used a poultice of bark from the spruce-fir, and the juice of the same bark for cleansing purposes, It proved a painful dressing, but in a few days the wound was clean, and the proud flesh around it destroyed, but whether this desirable result was due to the efficacy of the spruce poultice and the decoction, or to the vitriol which he also used, he fails to state. ‘‘In short I was so successful that by Christmas my patient engaged in a hunting party and brought me the tongue of an elk.” A Chinook wind on the fifth again reduced the snow Mackenzie had observed at Athabasca that a south-west wind always brought clear, mild weather. “’To this cause it may be attributed that there is now so little snow in this part of the world. These warm winds come off the Pacific Ocean, which cannot in a direct line be very far from us, the distance being so short that though they pass over the mountains covered with snow there is not time for them to cool.” Mackenzie here speaks of the comparatively short dis- tance to the Pacific. The maps of the period, especially Pond’s, make the distance from Lake Athabasca to the western ocean short. But Mackenzie must have had his ideas on the subject modified by the observations of ‘Turner, the astronomer, who had wintered at Fort Chipewyan, 1791-2, while Mackenzie himself was in England perfect-