7 6 ^ugtift I749- 



nuary the greateft cold was on the i8th day 

 of the month, when the Reaumurian ther- 

 mometer was twenty-three degrees below 

 the freezing point. The lead degree of cold 

 was on the 3 i ft of the fame month, when 

 it was juft at the freezing point, but moft 

 of the days of this month it was from 

 twelve to fifteen degrees below the freez- 

 ing point. In February the greateft cold 

 was on the igth, and 25th, when the ther- 

 mometer was fourteen degrees below the 

 freezing point ; and the leaft was on the 

 jd day of that month, when it rofe eight 

 degrees above the freezing point ; but it 

 was generally eleven degrees below it. In 

 March the greateft cold was on the 3d, 

 when it was ten degrees below the freez- 

 ing point, and on the 22d, 23d, and 24th, 

 it was mildeft, being fifteen degrees above 

 it : in general it was four degrees below it. 

 In April the greateft degree of cold hap- 

 pened on the yth, the thermometer being 

 five degrees below the freezing point ; the 

 2jth was the mildeft day, it being twenty 

 degrees above the freezing point ; but in 

 general it was twelve degrees above it. 

 Thefe are the contents chiefly of Monf. Pon- 

 tarions obfervations during thofe months; 

 but I found, by the manner he made his ob- 

 fervations, that the cold had every day been 



from 



