﻿Thermionic Currents from Tungsten. 



819 



along a straight line through the whole range of tempera- 

 ture, which was from 1760° to 2520° K. The agreement 



Fig-. 5. 



35 4- 5 £ 



between the observed and calculated currents can be seen in 

 Table III. 



The value of b (59700) is larger and the currents are 



3G2 



