194 ON THE EFFECTING OF 



particularly a large ragged berg more than two miles in ex- 

 tent. This is the one, which, when speaking of the arctic 

 ice, I mentioned, as affording evidence of being rent from 

 the continent above the Linna-an Isles. (These being now 



July 14: ther. 32°, 38°, 30°: wind N . E. strong breeze : weather 

 clear, with cin'ocumulus at a great elevation, and cirrostratus in 

 profile in the south : at ten a. m. the clouds showed signs of land, 

 and at noon the summits of four islands came in sight : at this hour 

 a beautiful display of cirrus radiation * occurred, darting through 

 the cirrocumulus field, which underwent instantaneous dissolution : 

 colymbus glocitans in numerous flocks, enlivening tlie dreary scene 

 with its busy bustling flight and cheerful notes : a fog indicated by 

 a light grey stratus in N. and W. 



July 15: ther. 36°, 42°, 34°: wind N., light breeze. 

 July 16: ther. 36°, 48°, 38°: wind N.E., light breeze: the ship 

 advancing towards land on a S.E. course, came in with an extensive 

 field of ice reaching to the Linnaean Isles : this field was interspersed 

 with numerous bergs, and appeared unbroken for leagues in extent, 

 east and west. 



The state of cloud this day, beautiful cirrocumulus, and flimsy 

 comoid cirrus, the points of which were scattered in every direction : 

 the atmosphere to the northward unclouded, and sky of a pearly blue 

 hue : a pair of burgomasters on wing : colymbus grylle and colymbus 

 glocitans in associated and numerous flocks : several of the mouodon 



* Corresponding with the magnetic variation very exactly. 



