ON THE POWER OF FLUIDS TO CONDUCT HEAT. 85 



It is to be fuppofed, that a given quantity of water, of the The refults 

 feveral temperatures mentioned, is carefully poured upona^ tchedoutfor 

 cake of ice at the bottom of a cylindrical glafs jar, and ftands peratures. 

 without agitation for a given time, as half an hour; then the 

 proportionate quantity of ice fuppofed to be melted by the 

 two caufes feparately are ftated in numbers, and then the 

 fums are taken to expre(^ the joint eife&s. 



Temperature 



