502 



Mr. A. "W. Warring-ton on 



Fia:. 3. 



H = Hydrometer. T 1 =Principal Thermometer (Tonnelot). 



F = Funnel and connecting rod. T 2 , T 3 , T 4 = Auxiliary Thermometers. 

 S = Stirrer apparatus. E = Gas Regulator. 



