Climate of London and Philadelphia. tft 



Fahrenheit's Wedgwood's 

 scale.' scale. 



Red heat, fully visible in the dark 947 



Mercury boils, also lintseed, and other 



expressed oils - - 600 



Oil of turpentine boils - 560 



Sulphuric acid boils - 546 



Lead melts - - - 540 



Bismuth melts - - 460 



Tin melts - - 408 



Sulphur melts - - 244 



Nitrous acid boils - 242 



Cow's milk boils - - 213 



Water boils - - 212 



Brandy boils - - 190 



Alcohol boils - 174 



Serum of blood and white of eggs harden 156 

 Bees-wax melts - - 142 



Heat of the air near Senegal, sometimes 111 

 Heat of incubation - 108 



Heat of birds, from - 103 to 110 



Heat of domestic quadrupeds, 100 to 103 

 Heat of hedgehogs and marmots, in a 



torpid state - - 39| 



Heat of the human body 97 to 98 



Heat of a swarm of bees - 97 to 98 

 Heat of the ocean under the equator 80 



Sulphuric acid, of specific gravity of 



1780, freezes at - - 45 



Oil of olives begins to congeal 43 



Water freezes and snow melts 32 



Milk freezes - - SO 



VOL. II. PART I. C 



