Table 15. 

 REDUCTION OF THE BAROMETER TO SEA LEVEL. 



ENGLISH MEASURES. 



Correction of 2000 m for Latitude: 2000 /» X 0.002662 f<75 2 d>. 



For latitudes 0° to 45°, the correction is to be subtracted. 

 For latitudes 45° to 90°, the correction is to be added. 



Smithsonian Tables. 



69 



