...23°. The real opportunity for agricultural enterprise cannot be deduced from annual mean temperature alone, but is dependent on the heat of the summer months and their duration. In the scorching sun of the arctic midsummer vegetation attains an almost tropical...

...greatest degree of cold ever known in the territory was seventy degrees below zero, ( — 7(P ;) but such cold as this is very rare, and has little effect...months and the duration of the summer. • At Fort Youkou I have seen the thermometer at noon, not in the direct rays of the sun, standing at 112°; and...

...+25°. The greatest degree of cold ever known in the territory was seventy degrees below zero, but such cold as this is very rare, and has little effect...but is dependent on the heat of the summer months nnd the duration of the summer. " At Fort Yonkon I have seen the thermometer at noon, not in the direct...

...springs are not frozen up throughout the year. The real opportunity for agricultural enterprise in a country cannot be deduced from annual mean temperatures...summer months and the duration of the summer.* At Fort Yukon I have seen the thermometer at noon, not in the direct rays of the sun, standing at n2°, and...

...enterprise in any region, cannot be deduced from the annual mean temperature alone, but it is dependent upon the heat of the summer months, and the duration of the summer. "At Fort Yukon" says Dall, "I have seen the thermometer at noon, not in the direct rays of the sun, standing...

...annual temperature of the whole territory is roughly estimated to be about 25°, and it is remarked that the real opportunity for agriculture in a cold country cannot be deduced from annual mean temperature alone, but is dependent on the heat and duration of the summer months. Geological changes...