Passiny Isothermallg from Solid to Liquid. 3 



obtain results for the liquid, §1, I modified the method so as 

 to adopt it both for high temperature and low temperature 

 environments, as follows. 



Apparatus. 



3. General disposition. — To obtain a circulation of water at 

 any constant temperature not more than 30° or 40° above the 

 temperature of the hydrant water, I used the device of boiler, 

 graduated faucet and distributer, to be described in connection 

 with my work on the volume expansion and the thermal 

 capacity of thymol.* 



Fig. 1. — Vertical section of the apparatus for thermal conductivity, with all 

 parts in place. Scale £. 



In figure 1, DD and EE are the cylindrical copper plates 

 between which the sample to be tried is sandwiched. The 



*See note in Proceed. Am. Acad., vol. xxvi, p. 313, 1892. 



