346 



DR. J. A. HARKER ON THE HIGH-TEMPERATURE STANDARDS 



ft 



C 



Joint between platinum capillary 

 and neck of reservoir. 



a, metal cap ; I>, split metal collar ; 

 C, porcelain capillary ; c, plati- 

 num capillary, in this case drawn 

 down to smaller size for lower 

 4 or 5 centims. ; </, metal washer 

 soldered to platinum capillary. 



Fig- .1. 



