APPENDIX. 45 



The stations of the trigonometrical survey, afford an excellent opportunity of compa- 

 rison and check, and provided they are referred to at moderate intervals, it matters but 

 little what formula of calculation is used, if it is constantly the same, as the results cannot 

 greatly vary, if the barometer is also the same, and the observations are carefully made. 



The average height of the first range of hills between Tdra pass and Kattra pass is 

 about 520 feet above the sea ; that of the second range^ between the Kattra pass and 

 Lohargaon, 1050, and between Lohargaon and the foot of the hills near Patteriya, about 

 1200 feet, gradually ascending. 



The average height of the highest parts of the third range, or Bandair hills, ascertain- 

 ed geometrically from Lohargaon, Tigra, and Garreho, is about 1700 feet, and as they are 

 the same, deduced barometrically at Samaspur and Patteriya, they are evidently a plat- 

 form, like the first and second ranges, varying *only from a perfect level by the undulations 

 described in the account of them. 



The junction of the Sonar, Bearmi, ax\AKen rivers, is about 1000 feet, ascertained from 

 Tigra and Garreho the source of the Sonar, is 1 950 feet, and its fall 950 feet in a course 

 of 110 miles; the source of the Bearmi, about 1700 feet, ascertained from Samaspore, and 

 its fall to its junction with the Ken, 700 feet in 105 miles; the source and fall of the Ken 

 river is nearly the same as the Bearmi, though its course to the point of junction is only 

 seventy miles, but there is a cascade in this river at the Piperita Ghat. 



The highest line of lias limestone, is about 1350 feet, and the lowest near Hat,hi, 

 about 1070. The lowest level of ^rap in the /Saofar district, is near Patteriya, about 1350 

 feet, and its highest is the summit of the highest hills ; of sand-stone, the highest level is in 

 the vicinity of Sugar or Raisen, and its lowest the foot of the Tdra pass ; but these local 

 levels have reference only to the tract which has fallen under my observations, and by no 

 means apply generally. 



The cantonments of Lohargaon, are about 1260 feet, those of Sdgar, about 1980 feet, 

 and those of Jehelpur, about 1470. The Residency of Jebelpiir, is about 1500, and that of 

 Sagar, about 2050 feet above the sea. 



N The 



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