250 On the Cooling of Liquids in Vessels of Porcelain. 



But whatever be the explanation given to the phe- 

 nomena which present themselves in the heating and 

 cooling of bodies, it is certain that every new fact relat- 

 ing to these actions which is discovered must tend to- 

 wards perfecting the science of heat as well as the arts 

 which depend upon it. 



I flatter myself that this Assembly will find the re- 

 sults of the experiments which I have detailed suffi- 

 ciently curious and interesting to deserve its attention. 



