188 



On Conductive Properties of Ice. [Mar. 14, 



V. Fresh-water Ice. Flame 6 inches from nearest Thermometer. 

 Temperature of outer air = — 46°. February 10, 1876. 



Time. 



Ther. 1. 



Ther. 2. 



Ther. 3. 



Ther. 4. 



Temperature 

 of house. 



hours minutes 









o 



o 







6 50 



-22 



-20°75 



-21 -5 



-21 -5 



-21-5 



6 5 



-21 -5 



-20-5 



-21 -25 



-21 25 



-21-1 



6 20 



-20 



-20 



-21 



-21 



-21 



6 35 



-18-25 



-20 



-21 



-21 



-21 



6 50 



-17-5 



-19-16 



-20-75 



-21 



-21 





4-5 



115 



0-75 



0-5 



0-5 



VI. Sea- water Ice. Flame 6 inches from nearest Thermometer. 

 March 13, 1876. 



Time. 



Ther. 1. 



Ther. 2. 



Ther. 3. 



Ther. 4. 



Temperature 

 of house. 



hours minutes 









o 





o 



11 7 



-25° 



-24 



-24-5 



-24° 5 



-25-5 



11 22 



-24-25 



-23-25 



-24 



-24 



-24-75 



ii 37 



-23 -1 



-22 -8 



-23-75 



-23-75 



-24 



11 52 



-22 



-22-1 



-23-1 



-23*1 



-23 5 



12 7 



-21 



-22 



-23 



-23 



-23 25 





4 



2 



1-5 



1 -5 



2 25 



VII. Sea-water Ice. Flame 8 inches from nearest Thermometer. 

 Temperature of outer air = — 55°. February 29, 1876. 



Time. 



Ther, 1. 



Ther. 2. 



Ther. 3. 



Ther. 4. 



Temperature 

 of house. 



hours minutes 

 6 15 

 6 30 



6 45 



7 

 7 15 







-22 



-21-75 



-21 



-20-75 



-20-1 



o 



-21 

 -20-5 

 -20 -25 

 -20-1 

 -20 







-21-5 



-21-4 



-21-1 



-21 



-21 



o 



-21-5 

 -21-5 

 -21 -2 

 -21 1 

 -21-1 







-20 

 -20 

 -20 

 -20-5 

 -20 -5 



1-9 



1-0 



05 



0-4 





