in vcirioiLc Siibstancss. 



443 



The following table shews the results of the ex- 

 periments with the various substances therein men- 

 tioned : — 



Now the warmth of a body, or its power to confine 

 Heat, being as its power of resisting the passage of 

 Heat through it (which I shall' call its non-conducting 

 power) ; and the time taken up by any body in cooling, 

 which is surrounded by any medium through which the 

 Heat is obliged to pass, being, ceteris paribus^ as the 

 resistance which the medium opposes to the passage of 



