“This combination of favorable temperature and long hours of sunlight promises well for vegetable growth, but there are interfering causes. Unfortunately snow storms are apt to occur at any time during the year at Fort McPherson. On July 2, five inches of snow fell and the thermometer went down to 25° (7° below freezing point), yet, strange to say, the frost did not appear to hurt anything. A northeast wind continuing for a day or more, lowers the temperature in a few hours from pleasant, summer heat to what reminds one of the approach of winter. “As far as I could learn, no attempt at cultivating cereals or roots has been made at Fort McPherson. But at Fort Good Hope some of the people grow potatoes and other garden produce, and, as the difference of latitude is not much over a degree, the same things ought to grow nearly as well at Fort McPherson. The potatoes grown at Fort Good Hope are small, averaging about the size of a large hen’s egg. Those which I tasted were bad, as if they had been frozen, but they were of the previous season’s growth, and it was then the middle of July. Even in Ontario potatoes of that age are not very palatable. This tuber appears to have always vitality enough to increase, as at Fort Good Hope they have had NO CHANGE OF SEED FOR SEVERAL YEARS. This tends to show that the frosts are not very severe, during the time potatoes are growing and ripening. When I passed, the onions, lettuce and other things planted in the gardens were pretty well advanced, the onion stalks being about as large as pencils. No cereals had been sown, but I think barley would succeed fairly well. I am not aware of any continuous record of temperature at Fort Good Hope, so I cannot say whether the climate at that place is suitable for the growth of plants during June, July, and August. While I was there the days were pleasant and warm and the nights not unpleasantly cool. Nor, if we omit July 2, when snow fell, did I anywhere note any temperature below freezing during July and August. “It may be said that my observations extended over too great a range of latitude, to be of any value in indicating the temperature any period or any place, as while they were being taken we were constantly moving south. This is true, but it must be remembered that in moving south we were leaving the area of constant sunlight and getting to where night has a cooling effect, so that the objection has not the same weight it would otherwise have.