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APPENDIX. 



8° 50'. The diftance not enabling me to take the de- 

 preffion of any particular part of the flaff by the fea fide 

 under the land on the other fide accurately, I fent a man 

 to ftand clofe before it, and took the depreflion nearly to 

 his eye, which was found to be 1° 54'. The inftrument 

 was then removed to the ftation on the right (Bj. The 

 inftrument being adjufted with the fame precautions as 

 before, and the fixed telefcope pointing to the center 

 ftation (A) J the angle to the mountain was 84° 58', the 

 angle to the ftation by the water fide (C) 294° 44'. The 

 inftrument was then removed to the ftation by the fea fide 

 (C), the fame precautions ufed in adjufting, and the fixed 

 telefcope pointing to the center (A) in one with the 

 mountain, the angle to the ftaff on the right (B) was 

 2 4°, 44. Intending to make the triangle BCD ifofceles^ 

 and imagining there might be fome little error from the 

 unevennefs of the ground, I fet off on the theodolite aa 

 angle equal to the laft, having a perfon ready with a 

 ftaff on the bafe line to fix it where that angle fhould 

 interfedl on looking through the telefcope ; I found it cut 

 exadly at the ftaff D 335° 16', and from thence concluded 

 the meafure of the bafe to be exadt. I then took the alti- 

 tude of the mountain by the vertical arch 7° 44'. I then 

 removed the inftrument to the ftation (D) to take the third 

 angle ; but from the badnefs of the ground, I could not 

 place the inftrument exadly over the fpot where the ftaff 

 ilood ; from hence I took the third angle of the triangle; 

 the fixed telefcope pointing to (A) and the fame precau- 

 n tions 



