Publisher's Synopsis
Excerpt from Drift Ice and Currents of the North Atlantic: With a Chart Showing the Observed Positions of the Ice at Various Times
The quantity of ice Which appears on this route of navigation in different years is exceedingly various. It is sometimes seen as early in the year as January, and seldom later than the month of August. From March to J uly is its most common season. It is found most frequently to the west of longitude and to the eastward of longitude 52° but icebergs are sometimes met with as far eastward as longitude and in some rare cases, even still further towards enrope.
Experience has shown that the proximity of ice is far less hazardous than rocks and shoals; and this ?oating danger would be still less formidable were it not for the fogs and mists which it often causes. The thermometer has been often held up as afford ing sure indications of an approach to ice; by the reduction of temperature shown both in the air and water, and these indica tions are important and should by no means be neglected. But there may be many cases of approach to ice where a reliance npon the thermometer alone could not afford security.
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