which enabled Drewyer to get out of his way:  we then followed him one hundred yards and found that the wound had been mortal.  Not being able to discover any more of these animals we returned to camp:  here in turning over some of the baggage we caught a rat somewhat larger than the common European rat, and of a lighter colour:  the body and outer parts of the legs and head of a light lead colour; the inner side of the legs as well as the belly, feet and ears are white; the ears are not covered with hair, and are much larger than those of the common rat; the toes also are longer, the eyes black and prominent, the whiskers very long and full; the tail rather longer than the body, and covered with fine fur and hair of the same size with that on the back, which is very close, short, and silky in its texture.  This was the first we had met, although its nests are very frequent among the cliffs of rocks and hollow trees, where we also found large quantities of the shells and seed of the prickly pear, on which we conclude they chiefly subsist.  The musquitoes are uncommonly troublesome.  The wind was again high from the southwest:  these winds are in fact always the coldest and most violent which we experience, and the hypothesis which we have formed on that subject is, that the air coming in contact with the Snowy mountains immediately becomes chilled and condensed, and being thus rendered heavier than the air below it descends into the rarified air below or into the vacuum formed by the constant action of the sun on the open unsheltered plains.  The clouds rise suddenly near these mountains and distribute their contents partially over the neighbouring plains.  The same cloud will discharge hail alone in one part, hail and rain in another, and rain only in a third, and all within the space of a few miles; while at the same time there is snow falling on the mountains to the southeast of us.  There is at present no snow on those mountains; that which covered them on our arrival as well as that which has since fallen having disappeared.  The mountains to the north and northwest of us are still entirely covered with snow, and indeed there has been no perceptible diminution of it since we first saw them, which induces a belief either that the clouds prevailing at this season do not reach their summits or that they deposit their snow only.  They glisten with great beauty when the sun shines on them in a particular direction, and most probably from this glittering appearance have derived the name of the Shining mountains.

Wednesday, 3.  Nearly the whole party were employed in different labours connected with the boat, which is now almost completed:  but we have not as yet been able to obtain tar from our kiln, a circumstance that will occasion us not a little embarrassment.  Having been told by the Indians that on leaving the falls we should soon pass the buffaloe country, we have before us the prospect of fasting occasionally; but in order to provide a supply we sent out the hunters who killed only a buffaloe and two antelopes, which added to six beaver and two otter have been all our game for two or three days.  At ten in the morning we had a light shower which scarcely wet the grass.