On the Power of Fluids to conduct Heat. 387 
it to 110°; upon which was poured an inch of 
water at 50°, and then kept still. 
TEMPERATURE. 
Mere. Water. 
Time. 110° 50° 
4 min, 74, 79 
8 7 70% 
Io 79x 7° 
Finding that water was so bad a conductor 
of heat, I was desirous to learn how ice would 
- conduct it, and tried it as follows, ° 
Experiment g. 
Feb. oth. Out of a mass of ice, by means of 
a hot iron, I shaped a cylindrical piece, 3 inches 
in diameter, and 53 inches long, clean and pure ; 
its weight 17 ounces. Made a small round hole 
at one end, one inch deep, and the size of a 
thermometer bulb, which was inclosed in it.— 
The other end of the piece was put into a bason 
of snow and salt, to the depth of from 3 to IZ 
inches, the temperature of which was kept below 
10° for 1} hours. Air 37°. 
Therm. inthe © Therminthe 
Time elapsed, liquid, ice. 
5 32° 
3 ‘ e 
1Zh. atamedium 7 gk 
