Table 55. 



DETERMINATION OF HEIGHTS BY THE BAROMETER. 



ENGLISH MEASURES. 



z {'/ -\- 2 h ^ 

 Correction for the Variation of Gravity with Altitude: ^-~ — —• 



Approx 



Imate 



difference 



of 



height 



Z. 



IirjOHT OK LVOWBR STATION IN KKKT {h ). 



1000 



2000 3000 



4000 



5000 



6000 



7000 



8000 



0000 



10000 



12000 



Feet. 

 500 



IOOO 



1500 



2000 



2500 



3000 

 35oo 

 4000 

 4500 



5000 



55oo 



(>< a >< : 

 6500 

 7000 



7500 



8000 

 8500 

 9000 

 9500 



!■!•- t. 



O 

 O 

 O 

 O 



O 

 O 

 + 1 

 I 

 I 



I I 

 12 



14 

 16 



17 



19 



9 

 11 



12 



14 

 15 

 17 

 19 



Feet. 



o 

 o 

 o 



+ 1 



9 

 1 1 

 12 



14 

 15 

 17 



J 9 

 21 



23 



Peet. 



o 

 o 



+ 1 

 1 



9 

 10 

 12 



13 



\5 

 1*7 

 19 

 21 



23 

 25 



Pi . 1 



O 

 O 



+ 1 

 I 



9 

 10 

 11 

 13 

 15 



17 

 18 

 20 

 22 

 25 



27 



o 



+ 1 



1 



1 



10 

 11 

 13 

 14 

 16 



18 

 20 

 22 



24 

 26 



29 



Peet. 



o 



+ 1 



1 



1 



9 

 10 



11 

 12 



14 

 16 



17 



19 



21 



24 

 26 

 28 



3i 



1 . . ! 



O 



+ 1 

 I 

 2 



9 

 IO 



II 



II 



13 

 15 

 17 

 19 



21 

 23 

 25 

 28 

 30 



Feet. 



O 



+ 1 



I 



2 



9 

 IO 



II 



12 



12 



14 

 16 

 18 

 20 



22 



25 

 27 

 30 

 32 



I . . 1 



O 



+ 1 



I 



2 



9 



IO 



II 



12 

 13 



13 

 15 

 17 

 19 

 21 



24 

 26 

 28 

 31 



Feet. 



O 



+ 1 



2 



2 



IO 

 II 

 12 



12 

 13 



14 

 16 

 18 



21 



23 



25 

 28 

 30 



Peet. 



+ 1 

 1 

 2 

 2 



9 



9 



10 



11 



J2 



13 



14 



'5 



16 

 18 

 21 

 23 

 25 



28 

 31 



iMITHSONIAh TABlEe. 



143 



