OBSERVATIONS ON THE MAGNETIC DIP AND DECLINATION. 371 
Weather clear and calm. 
Nore.—From the front door of Burnham’s Inn, near the east end of the bridge above the forks of the Ken- 
nebec river, to the point of observation, is S, 25° W., compared with the true meridian, or S. 38° W., magnetic, 
and the distance, by measurement, four hundred and ninety feet. 
XLVII. 1844,—August 7th.—Taschereau’s. Intersection of the Highland Boundary mith 
; the Quebec road. Maine and Canada line. 
Latitude of point of observation N. 45° 48’ 37'.7; Longitude of do. W. 70° 24’ 07”. 
NeeEp iE No. l. 
Marked, jal Seuteee onservation, ‘Temperature. Dip observed. 
N 16 6h. O8m., P.M. 56° 76° 48'.44 
S) 16 6 39 58 76° 51’.12 
Dip, by thirty-two observations on needle No.1, . . . . . . 76° 49.78 
NEEDLE No. 2. 
N 16 6h. 55m., P.M. 58° 76° 52'.56 
Ss 16 7 34 tf 56 76° 49'.59 
Dip, by thirty-two observations on needle No.2, . . . oo TIVGV OF 
Dip, by a mean of sixty-four observations on needles Nos. 1 ie m «. . Fae ty WO 60 
Raining, during the observations on both needles. The instrument was protected by 
a tent, free from any iron fixtures. . 
Norr.— The point of observation is on the summit of the ridge of Highlands, and bears, from the front door 
of T'aschereau’s house, by the magnetic needle, N. 57° 30’ E., and is distant, by measurement, three hundred and 
y § y 
twenty-five feet. 
XLVITI. 1844,—August 11th. Moose River Post Office, Maine. 
Latitude of point of observation 45° 39’ 22", N.; Longitude 70° 16’ 08”, W. 
NEEDLE No. 1. 
S 16 6h. 28m., A.M. 55°.5 76° 50'.3 
N 16 7 16 57 76° 47'.5 
Dip, by thirty-two observations on needle No.1, . . . . . . 76° 48'.9 
NEEDLE No. 2 
Ss 16 7h. 33m., A.M. 57° 76° 46'.5 
N 16 8 00 * 57 76° 49'.93 
Dip, by thirty-two observations on needle No.2, . . . . 76° 48'.2 
Dip, by a mean of sixty-four observations on needles Nos. 1 mer oS .*. e 7 48'S 
The morning was clear and dry, with a stiff west breeze. 
Norg.—The point of observation is in the hay-field of Mr. Jacob Lowell, on the hill north-east of his house, 
and about ninety yards to the east of the public road. From the point of observation to the south-east corner of 
Mr. J. Lowell’s house is 8. 28° W., by needle, and the distance, by measurement, is six hundred and sixty-four 
feet. 
XLIX. 1844, September 1st.—Mouth of Grand River, New Brunswick. 
Latitude 47° 11' 04", N.; Longitude 67° 57’ 18”, W. The point of observation is the 
astronomical station at the mouth of the river, and is the north-east point of land at the 
junction of the east shore of Grand River with the north shore of the St. John 
VOL. IX.--97 
