517 



CHAPTER XXIV. 



Heights and Latitudes of the Stations visited in 

 Afghanistan.* 



" The subjoined Table contains the latitudes and the altitudes of 

 the principal stations passed through by the late Dr. Griffith during 

 the Cabul campaign in 1838-40, from his original observations. 

 The altitudes for the latitudes were taken with the sextant and the 

 artificial horizon, and the results throughout are so nearly coincident, 

 that it may be relied on the latitudes herein given are correct to 

 within half a minute in space. 



The altitudes determined by the barometer are on the principle, 

 that the temperature and the altitude of the barometer as observed 

 at any station on the preceding day would be the same, could the 

 observations be made at it and the present station at the same 

 instant of time. The formula from whence the altitudes have been 

 deduced on this principle, is 60345.51 {1 + 001111 (t + t'— 64°) 



8, r i 1 



x log. of I i + 0001 (r r') / X (1 + 002695 cos. 2</>) where 



fi, t, and r are the altitude of the barometer the temperature of 

 the air and of the mercury at the lower station ; and the same 

 letters accented, the corresponding quantities at the upper station, 

 being the latitude of the place." 



Latitudes, and Elevations above the Sea, of the various localities visited in 



Afghanistan. 





it 





It 





ii 



Latitude of 



rt o 



Station. 



°.« 



Station. 







o > 











O 1 II 





Loodianah, 



12 



30 53 22 





Hureeky Ghat, 



2 



31 7 34 





Shevalee (on Indus), 



4 



28 29 9 





Shikarpore, 



9 



27 56 53 



*255 



Bagh (Town), 



6 



29 2 20 





Mysoor, 



6 



.. 10 45 





* The Editor is indebted to the kindness of Mr. Cumin, not only for the above 

 note with which this table of heights and latitudes is introduced, but also for the 

 construction of the table itself from the results of 437 observations for latitudes 

 alone, and an equal number almost for altitudes. 



