ON THE POWER OF FLUIDS TO CONDUCT HEAT. 





\ 



I 



Experiment 2. 



The fame as before ; only a circular piece of wood floated Exp. 2. The 



upon the furface of the water, on the centre of which the fame "!- ith mort 

 r " precaution* 



flream of the fyphon was directed to prevent the current 

 downwards. 



(Air in the room 55°.) 

 TEMPERATURE. 

 Time. at top. at bottom. 



Before the water was poured on 56° 



— 116 ft 56 -f 



K) min. 105 56% 



20 92 57 — 



30 85 57i- 





40 80 57 1 



50 77 58 -f~ 



1 h. — . 75 58$ 



— 10 72| 58$ 



— 20 ,70 59 — 



— 30 67 58f 



— 40 65 58 4- 



— 50 63 58 



2 — 62 58 — 



— 15 61 57$ 



— 30 $9% 57 



3 — 57$ 56 (Air 52°) 

 5 — 53$ 53 Do. 

 A fimilar refult was obtained in a different way by the 



following 



Experiment 



