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Obfervations on the Dipping-needle, at Albany Fort, 
Longitude 83° 30' Weft. Latitude 52 0 24' North. 
February 3, 1775. 
\ 
o / 
76 50 Index Eaft. 
77 12 
80 o Index Weft. 
78 45 
79 20 changed the poles, the index ftill Weft 
79 47 
7940 Index Eaft, 
79 34 
79 45 
79 17 
79 8 Index Weft. 
78 50 
79 45 changed the poles again, the index Weft. 
79 19 
81 8 Index Eaft. 
79 45 
81 25 Mean of all obfervations 79 0 17'!. 
I took particular care in placing the inftrument in the 
magnetic meridian, and was near four hours before I got 
it right. The obfervations employed me four hours 
more ; and when they were finifhed, I turned the index 
South, when the needle pointed at 89° 56', or very near 
perpendicular. I cannot poflibly account for the dif- 
ferences, more efpecially as I took fo much pains to ren- 
der thefe obfervations correct. Ob- 
