BAROMETRICAL TABLES. 



Reduction of the barometer to standard temperature — 



English measures Table io 



Metric measures 1 1 



Reduction of the barometer to standard gravity at latitude 45° — 



English measures Table 12 



Metric measures 13 



Reduction of the barometer to sea level — English measures. 



Values of 2000 w Table 14 



Correction of 2000 vi for latitude 15 



B^— B = B{io"*— 1) 16 



Reduction of the barometer to sea level — Metric measures. 



Values of 2000 w Table 17 



Correction of 2000 m for latitude 18 



B^ — B= B(io'^— i) 19 



Determination of heights by the barometer — English measures. 



Values of 60368 [i + 0.0010195 X 36] lo^^ ?^^o .... Table 20 



B 



Term for temperature 21 



Correction for latitude and weight of mercury .... 22 



Correction for an average degree of humidity .... 23 



Correction for the variation of gravity with altitude . . 24 

 Determination of heights by the barometer — Metric measures. 



Values of 18400 /c^^ Table 25 



B 



Term for temperature 26 



Correction for humidity 27 



Correction for latitude and weight of mercury .... 28 



Correction for the variation of gravdty with altitude . 29 



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



in the barometer — English measures Table 30 



Difference of height corresponding to a change of i millimetre 



in the barometer — Metric mea.sures Table 31 



Determination of heights by the barometer. 



Formula of Babinet Table 32 



Barometric pressures corresponding to the temperature of the 

 boiling point of water — 



English measures Table 33 



Metric measures 34 



13 



