378 BABCOCK. 



4. 10 April 1916. 



Time Position of Resistance Barometer Temp, of Bar. 



Mins. Extension Coil. Oliirs Inches Oo F. 



25 10.90748 29.481 67.0 



1 34 1.90530 29.481 67.0 



3 25 10.90742 



4 25 10.90715 



6 25 10.90684 



7 25 10.90674 29.470 67.0 



8 25 10.90676 



9 25 10.90670 29.472 67.0 



11 25 10.90670 29.474 67.0 



12 25 10.90667 



13 25 10.90667 29.475 67.0 



14 25 10.90665 29.472 67.5 



15 34 1.90450 



17 25 10.90661 29.476 67.5 



19 34 1.90455 



R = 10.90687 at 99.506 °C. 



Fundamental Interval = 10.08407 ohms. 

 9 ohm extension coil = 9.00209 ohms. 



Average Value of Rm° = 10.95578 ohms =t 0.00050 ohms. 

 Average value of 9 ohms extension coil = 9.00214 ohms ± 0.00004 

 ohms. 



Resistance at 218.0 °C. (Extension Coil Link in 34 ohm position.) 



R = 13.42380 ohms at 217.58 °C. 



