/ 



aoo 



Experiments m the Conducing Fotven of Fluids ivith Regard to Heat. 



Time. 



gh 2210 



33 

 33i 



34 



34i 



35 



35i 



35l 



36]: 



Another wooden veflel, exaftly of the fame dimenfions, and fitting up, was then filled 

 with olive oil, and left with its fteel cover on for a fhort time, and then the boiler and 

 the lamp were placed. It is to be obferved, that the lamp was very fufficient to keep the 

 water rapidly boiling over the water in the glafs veffel ; that it boiled but moderately over 

 the mercury ; and with much noife and tremulous a£lion over the oil. This, and the dif- 

 ference of time employed in heating the different fluids, mufl {hew either a difference of 

 facility in circulation, or in receiving and giving, or in abfolute conducing power in 

 equal bulks. The mercury, it is feen, required feven minutes to raife the middle ther- 

 mometer through twenty-one degrees, from 77° to 98° ; but the oil required thirty-four 

 minutes, or was nearly five times as long in conducing dr conveying the fame heat. 



"Table of the Experiment luith Olive Oil. 



Time. 



16 



27 

 31 



Outer 

 Ther. 



84" 



8St 



c,2— 



94 



100 



While this experiment was making, another -boiler was kept in adion upon a glafs 

 cylindrical veffel filled with olive oil. An obferver carefully noticed the fmall opaque par- 

 ticles fufpendcd in the fluid, but he could pereceive no current during the continuance 

 of thirty minutes. 



