1875 TEMPERATURE RISES TO 35°. 203 



the observation ; but in the meantime the temperature 

 had fallen to 28°. On going to the observatory I found 

 that the maximum thermometer, which had been set at 

 noon at 29° - 2, had registered during the interval 34° ; 

 this corroborated the report, but I thought that a com- 

 bination of accidents might have introduced some error. 



1 then reset the register at 28°, and particularly 

 observed that it was fixed in its proper position and 

 immovable by wind or any shaking cause. 



* During the afternoon the temperature was ex- 

 tremely variable, with squally weather from the S.S.E. 

 At 8 p.m., a second warm blast was experienced. 

 It fortunately happened that Dr. Moss, Lieutenant 

 GifFard, and I were comparing some thermometers with 

 those in general use, and while doing so each of the five 

 registered 30°. On going to the observatory the two 

 thermometers there registered the same degree of tem- 

 perature, thus giving seven independent observations. 

 Moreover the maximum thermometer set at 28° at 



2 p.m. had registered a temperature of 35° in the 

 interval. 



' This proves that the rise in temperature could 

 not be wholly due to the air passing across open water. 



4 The gale must undoubtedly have travelled to the 

 northward from Baffin's Bay, perhaps from the Atlantic ; 

 the warm air is at a higher temperature than any water 

 within 600 miles of our position. 



1 Subsequent observations taken by Dr. Moss, 

 showed that the temperature at the masthead, apart 

 from the cooling influence of the cold ground and ice, 

 was two or three degrees warmer than that below. 



' At 10 p.m. the wind changing to the northward 



