calculating Heights by the Barometer. 

 Table D. (continued.) 



205 



Table E. 



Let, for example, the height of the barometer at the lower 

 station be = 600 millimetres ; the difference of level = 1500 

 metres, we have 1000 : 0*63 = 1500 : 0*95, and the difference 

 of the level corrected = 15*009 metres. This correction 

 always added. 



Table F. 

 Reduction of Metres into English Feet and Inches. 



is 



