Penfylvania, Philadelphia. 107 



not being frozen ftrong enough to bear a 

 carriage at Philadelphia during my (lay, 

 though this often happens. On confider- 

 ing the breadth of the river which I have 

 already mentioned in my defcription of 

 Philadelphia, and the difference between 

 high and low water, which is eight Englijh 

 feet y it will pretty plainly appear that a 

 very intenfe froft is required to cover the 

 Delaware with fuch thick ice. 



2. But it is likewife true, that though 

 the winters are fevere here, yet they are 

 commonly of no long duration, and I can 

 juftly fay, that they do not continue above 

 two months and fometimes even lefs,at Phi- 

 ladelphiai and it is fomething very uncom- 

 mon when they continue for three months 

 together, in fo much that it is put into the 

 gazettes. Nearer the pole the winters are 

 fomewhat longer, and in the quite northern 

 parts they are as long as the Swedijh win- 

 ters. The daily meteorological obfervations 

 which I have made during my ftay in Ame- 

 rica, and which I intend to annex at the 

 end of each volume of this work, will give 

 more light in this matter. 



3. The heat in fummeris exceffive, and 

 without intermiffion. I own I have feen 

 the thermometer rife to nearly the fame 

 degree at Aobo in Finland. But the differ- 

 ence 



