f the parallel of 60 deg., at the stations named in his work.
Great Bear Lake, Great Slave Lake, and Fort Enterprise, lie east of the
Rocky Mountain range which interposes between them and the Pacific, and
have Hudson's Bay and other large bodies of water on the east and north.
Hence, easterly winds prevail at these places. At Norway House, on
Nelson's River, near the north end of Lake Winnipeg, a large body of
water, which stretches off to the south, we find the south wind the
prevalent one, especially in December, when the northern and north-eastern
waters are frozen up, and the N. E. largely present at all seasons of the
year.
At New Hernhut, in winter, when Davis' Straits are covered with floes, the
prevailing wind is east, drawn from the warm, open sea east of Greenland,
where the Gulf Stream is evaporating. But in June and July, when
evaporation is going on over Davis' Straits and Baffin's Bay, the
prevailing winds are west and south, and the east winds fall off.
Other stations are equally instructive, but I must forbear.
In relation, however, to the easterly zone of wind, of which Professor
Coffin speaks, it should be added that the counter-trade, south of the
magnetic pole, in high latitudes, pursues an easterly course, is near the
earth, and attracts an opposite wind as it does on the east and north of
the pole, in localities where the surface atmosphere is not peculiarly
susceptible to its influence, and, therefore, the _winds are mainly
opposite to its course_. Thus, at Melville Island, they are almost all
westerly and north-westerly, for there the remnant of the counter-trade is
passing west around the magnetic pole. These westerly and north-westerly
winds are very light, and like the gentle easterly breeze which sets
toward the cumulus clouds and summer showers.
Since most of this work was written, I have procured, and read with great
pleasure, Lieutenant Maury's "Geography of the Sea." It is a work of
great interest, and should be in the hands of every one. The extent of
ground covered, however, made it necessary for Lieutenant Maury to
introduce much matter not derived from his own investigations. In doing
this, he has taken received opinions, and has thereby introduced much
heresy. The view he adopts in relation to the monsoons, although the
popular one with philosophers, is of that character. He says (page 222):
"Monsoons are, for the most part, formed of trade-winds. When a
trade-win
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