448 Mr. Garrett and Dr. Willows: Chemical 
The current apparently starts at 823°, The numbers 
are represented graphically in fig. 7. The relation between 
current and absolute temperature is again of the form 
T=aT” with n=60. 
Bie. 7. 
EEE EEE EE EEE EEE EE EEE EEE EEE 
SSssHeescdeteosast onset focad fiacaitit 
240 
BERERBKES SREB 
ERE EALEGD CLUE RRRRE RRR EOORRORLOB 
BRECRE SE LER EERAP AEE ORNRBRNAMOEYE 
BRRRHRSRASECRAR | || 
Eas 
200-7 
160 
720 
30 
oO 
Ne 375 330 IAS 360 
TEMP, 
With the field reversed the leak was about 10 divisions 
per min. at 360°, altogether different from that due to 
ZnCl. 
A fresh portion of the mixture was put in the (appa- 
ratus and heated to 855° as quickly as possible. When the 
