TABLES FOR DETERMINING HEIGHTS. AND CONVERSIONS INVOLVING 



GEOPOTENTIAL 



Determination of heights hy the barometer. EngHsh measures. 



Values of 60368 (1+0.0010195x36) log ~— .... Table 51 



b 



Term for temperature Table 52 



Correction for gravity and weight of mercury Table 53 



Correction for an average degree of humicHty Table 54 



Correction for the variation of gravity with altitude . . . Table 55 



Determination of heights by the barometer. Metric and dynamic 

 measures. 



Values of 18400 loq ' Table 56 



n 



T o r ^ '1 

 Values for 18400 log — ^-- Table 57 



Temperature correction factor (a = .0037^) Table 58 



Temperature correction (0.0036719 xZ) ....... Table 59 



Correction for humidity Table 60 



Correction for humidity. Auxiliary to Table 58 ... . Table 61 



Correction for gravity and weight of mercury .... Table 62 



Correction for the variation of gravit}' with altitude . . . Table 63 



Heights reduced from meters to dynamic meters, the acceleration 



of gravity at sea level being 9.80 Table 64 



Corrections to Table 64 for values of the acceleration of gravity 



at sea level different from 9.80 Table 65 



Normal values of the acceleration of gravity at sea level . . . Table 66 



Heights reduced from dynamic meters to geometric meters, the 



acceleration of gravity at sea level being 9.80 . . . Table 67 



Corrections to Table 67 for values of the acceleration of gravity 



at sea level different from 9.80 Table 68 



Difference of height corresponding to a change of o.i inch in the 



barometer. English measures Table 69 



Difference of height corresponding to a change of i millimeter 



in the barometer. Metric measures Table 70 



Determination of heights by the barometer. 



Formula of Babinet Table 71 



Barometric pressures corresponding to the temperature of the 

 boiling point of water — 



English measures Table 72 



Metric measures Table 73 



