332 
MAGNETIC SURVEY IN NORTH AMERICA, 
Table LI. (Continued.) 
Station. 
Lat. 
Long. 
Year. 
Observer. 
Inclination. 
Madison 
Madison 
Blue Mound 
Blue Mound 
Hickoks . . . . 
Portland 
Portsmouth 
Portsmouth 
Portsmouth 
Portsmouth 
Portsmouth 
Greenbush . . 
Albany . . . . 
Albany 
Albany . . . . 
Albany 
Albany . . . . 
Schenectady 
Utica 
Utica 
Syracuse. . . . 
Chat Falls . . 
Oswego 
Oswego . . . . 
Rochester . . 
Lockport . , 
Buffaloe 
Buffaloe 
Buffaloe . . . . 
Niagara . . . . 
Niagara . . . . 
Toronto Observatory. 
Toronto Observatory. 
Near Toronto 
Hamilton 
Hamilton 
Goderich 
Bangor 
Forks of the Kennebec 
Locke’s Mills 
Bethel 
Goreham 
Hall’s Stream 
Mount Washington 
Near Mount Washington 
Stanstead 
L. Memphremagog, East shore. . 
Cornwall 
Brockville 
Penetanguishene 
South Manitou Island 
South Manitou Island 
43 04 
43 03 
43 01 
43 00 
42 58 
73° 30' to 74° 30' (continued). 
270 54 
270 54 
270 22 
270 22 
270 13 
1839. 
1841. 
1839. 
1841. 
1841. 
Locke. 
Loomis. 
Locke. 
Loomis. 
Loomis. 
74 
74 
73 
73 
73 
Sis }? 4 
73 38-0 
41 
34 
39-5 
74° 30' to 75° 30'. 
43 41 
289 40 
1845. 
Locke. 
75 13-7 
43 05 
289 16 
1844. 1 
f74 47-71 
43 03 
289 16 
1844. 
Graham 
74 38-0 
43 04 
289 13 
1844. 
L 
and 
< 74 53-7 
^74 51-0 
43 04 
289 15 
1844. 
Whipple.* 
74 58-2 
43 05 
289 15 
1844. 
74 57-4 
42 39 
286 16 
1844. 
Locke. 
74 40-6 
42 39 
286 15 
1839- 
Loomis. 
74 51-31 
42 39 
286 15 
1841. 
Bache. 
74 40-1 
42 39 
286 15 
1841. 
Nicollet. 
74 39-9 
>•74 43-2 
42 39 
286 15 
1842. 
Lefroy. 
74 44-6 
42 39 
286 15 
1844. 
Locke. 
74 40-2_j 
42 48 
286 05 
1839. 
Loomis. 
74 36-1 
43 07 
284 47 
1839. 
Loomis. 
74 57-2' 
-74 53-0 
43 07 
284 47 
1844. 
Locke. 
74 48-8 J 
43 00 
283 46 
1839. 
Loomis. 
74 50-9 
45 26 
283 28 
1843. 
Lefroy. 
75 16-1 1 
43 26 
283 24 
1839. 
Loomis. 
75 11-31 
> 75 09-7 
43 26 
283 24 
1841. 
Nicollet. 
75 08-1 
43 08 
282 09 
1844. 
Locke. 
74 38-8 
43 11 
281 14 
1844. 
Locke. 
74 44-2 
42 53 
281 06 
1839. 
Loomis. 
74 40-8' 
42 53 
281 06 
1844. 
Locke. 
74 36-5 
>74 38-1 
42 52 
281 06 
1845. 
Lefroy. 
74 37-0 
1 
43 05 
280 51 
1841. 
Nicollet. 
74 52-4' 
> 74 49-6 
43 05 
280 51 
1845. 
Lefroy. 
74 46-8 
43 39 
280 39 
f 1841. 
[1845. 
Lefroy and 
Younghusband. 
j.75 15-5' 
> 75 15-0 
43 39 
280 39 
1844. 
Locke. 
75 13-4 J 
43 39 
280 41 
1844. 
Locke. 
75 12-5 
43 16 
280 04 
1842. 
Lefroy. 
74 56-7' 
j> 74 55-4 
43 16 
280 04 
1845. 
Lefroy. 
74 54-1 
43 45 
278 08 
1845. 
Lefroy. 
75 04-8 
75° 30 
' to 76° 30'. 
44 48 
291 13 
1841. 
Graham. 
76 11-6 
45 20 
290 02 
1844. 
Graham. 
76 23-7 
44 24 
289 16 
1845. 
Locke. 
75 50-7 
44 27 
289 09 
1845. 
Locke. 
75 51-0 
44 27 
288 47 
1845. 
Locke. 
75 33-4 
45 01 
288 30 
1845. 
Graham. 
76 23-5 
44 17 
288 41 
1845. 
Locke. 
75 45-0 
44 16 
288 31 
1845. 
Locke. 
75 40-0 
45 02 
287 50 
1842. 
Lefroy. 
76 19-5 
45 01 
287 41 
1845. 
Whipple. 
76 08-6 
45 02 
285 13 
1845. 
Younghusband. 
76 16-4 
44 35 
284 15 
1845. 
Younghusband. 
76 18-9 
44 49 
279 59 
1844. 
Lefroy. 
76 20-1 
45 05 
274 22 
1841. 
Loomis. 
75 59-3 
| 75 57-5 
45 05 
274 22 
1842. 
Younghusband. 
75 56-6 
* Lieut. A. W. Whipple, of the United States Corps of Topographical Engineers. The observations at 
Portsmouth were made at five different stations, which are named in order of succession corresponding with 
the entries in the 'Fable ; Jamaica Island ; near the north extremity of the base line of the Trigonometrical 
Survey of the harbour; Mr. Shelliby’s field; Shapley’s Point; One Tree Island, 
t Local disturbance ; omitted in the map. 
