432 Of the Prcpagatioii of Heat 



ino- these inquiries further at that time ; but I shall not 

 fail to recommence them the first leisure moment I can 

 find, which I fancy will be about the beginning of the 

 month of November. In the mean time, to enable my- 

 self to pursue them with effect, I am sparing neither 

 labor nor expence to provide a complete apparatus neces- 

 sary for my purpose; and his Electoral Highness has 

 been graciously pleased to order M. Artaria (who is 

 in his service) to come to Munich to assist me. With 

 such a patron as his most Serene Highness, and with 

 such an assistant as Artaria, I shall go on in my pur- 

 suits with cheerfulness. Would to God that my la- 

 bours might be as useful to others as they will be pleas- 

 ant to me ! 



I shall conclude this chapter with a short account of 

 some experiments I have made to determine the con- 

 ducting powers of water and of mercury ; and with a 

 table, showing at one view the conducting powers of all 

 the different mediums which I have examined. 



Having filled the glass globe inclosing the bulb of 

 the thermometer No, 4, first with water, and then with 

 mercury, I made the following experiments, to ascertain 

 the conducting powers of those two fluids. 



