Field Practice with Aneroid Barometer, 



359 



Inches of 

 Mercury. 



26.1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 



27.0 

 1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 



28.0 

 1 

 2 

 3 

 4 

 5 



By taking the difference of the figures in the second column of 

 the preceding Table, opposite the two readings found in the first 



