APPENDIX. 



" exactly the fame as Mr. Canton determines It to be at that 

 *' heat ; and therefore its compreflibiHty at all other degrees 

 " of heat is fuppofed to be the fame as he makes it. Ac- 

 " cording to his experiments *, the compreffion of fpirits of 

 " wine by the preffure of 29^ inches of Mercury at the 

 " heat of 32°, id ejiy nearly the heat of the fea in thefe ex- 

 " periments, is 59I millionth parts of its bulk at that heat ; . 



*' therefore ^-^ = 1,9 and 65 —x = 6$ — F — E +. N >^ 



147 



j^ Ex E + F + A- , N X 1,9 X Fjt_*^" 



'» 9 6p ' 6387 * 



Observations made by Dr. Irving of the heat of the fea 

 agitated by a gale of wind, and that of the atmofphere. 



September the twelfth, the thermometer plunged 

 into a wave of the fea, rofe to 62°; the heat of the 

 atmofphere 50*. 



This experiment was frequently repeated during the 

 gale, and it gave nearly the fame difference. At night, 

 when the weather became moderate, the heat of water 

 30 fathoms below the furface was SS° J ^^^ furface and 

 the atmofphere were 54°. 



September the twenty-fecond. The fea- water was 60°; 

 the atmofphere, 59°: the wind at SW, a frefh gale. 



• Philofophical TranfaiSions, Vol. LIV. page 261. 



Observations 



