'A SURVEY OF KEMAOON. 

 STATION CHAMROWJ, EXAMPLE it 



305 



('■ .t. M..,;.,.i;;",".._ 



« 









r Refraction 



■f 



1 



1 



Distunce No. Xlf, by Tuse 3d. 



True Distanca of No. XII 



94G79 

 98678 



97397 

 98678 



97979 

 9S578 



982 5-2 

 98578 







Rrrwrs. .. , ,9,, . ., , ,,a» •••• •»«• • • 



-3899 



-1181 



-599 



-326 





- 



1 

 T2- 



I 



98485 

 98578 



98331 

 98378 



-93 



+P^ 1 





Thjb true dillances of the fnowy peaks^ which have been ufed as a 

 ftandard oF compirifon in the preceding examples, were derived by 

 Gafc 2d. 



It feems reaf::jnable to infer, that the refra^ive ftate of the atmos- 

 phere demanded an allowance, ia the firfl: example, equal to about rr 

 of the intercepted arch, and in the fecond to t$ nearly. 



Had the mean ftate of refraQion,; which I.affame to be rr for fnowy 

 peaks, been ufed in thefe iiflances by a traveller, dsfirou? to know his 

 place in the map, his coaclufioa would h:ive been erroneous by about. 

 I a mile, at Jfzelgerh, and by lomething lefs than i-|- mile a^ Ckamrowa. 

 He might dill, however, eonfole himfslf. with refleftin^, that, even 

 were it pollible to find a level road to the HlmdUyd^ a derambulator 

 furveyor could not meafure the diftance,. after many day's labor, wiih 

 any chance of obtaining it focorreflly, as it had been thus acquired 

 by an obfervation, which was made and computed in twenty minutes. 



I CANNOT at prefent offer an example of the 5th Cafe, as no fnowy 

 peak is vifible from any pirt of Rohilcund, where I have been, the po(i« 

 tion of' which is not already eftablifbcd by my furvey of Kamaon*, 



2 1 



