f 
OBSERVATIONS ON THE MAGNETIC DIP AND DECLINATION, 361 
XXIII. Blue Hill, New Brunswick. 1841, October 5th and 6th. 
At astronomical station No. 3, on the meridian of the monument at the source of the 
river St. Croix. Latitude 46° 38’, N.; Longitude 67° 46’ 45”, W. 
NEEDLE No. 1.—OcroBer 5. 
Polarity of No. of Time of 
Marked end. Readings. Observation, ‘Temperature. Dip observed. 
N 16 4h. 1lm., P.M. 47° 77> 154.83 
Ss 16 4.66 Ly 44. 77° 19'.18 
Dip, by thirty-two observations on needle No.1, . . . .« (ie 
Neepue No. 2.—OcroBer 5TH AND 6TH. 
N 16 5h. 30m.,P.M.,Oct.5 44° 77° 20'.6 
Ss 16 10 59 a.m.,Oct.6 54 MW Add 
Dip, by thirty-two observations on needle No. 2, October 5th, p.m., 
wrdotintowen Gthe A. Mihese aoder sills aciwooe luge buiw iseghttede 
Neepue No. 2 AS OBSERVED ON WHOLLY ON THE 6TH OF OCTOBER. 
8 16 10h. 59m. A.M. 54° 7a 31 a 
N 16 LL. Si % 60 77° 19'.56 
Dip, by thirty-two observations on needle No. 2, October 6th,. . 77° 18.58 
RECAPITULATION. 
Dip, by thirty-two observations on needle No. 1, October 5th, 1841, . . 77° 17.5 
Dip, by forty-eight observations on needle No. 2, made on the 5th and 6th 
of October, 1841, . ee, 4 | a eee 77° 18'.76 
Dip, by eighty observations on needles Nos. 1 and 2, made October 5th and 
6th, giving an equal weight to each BOM on so, . ia. +. hee ST Ie 
XXIV. Aroostook Hill, New Brunswick. 1841, October 29th. 
At astronomical station No. 4, on the true meridian of the monument at the source of 
the river St. Croix. Latitude 46° 47’, N.; Longitude 67° 46’ 45", W. 
NEEDLE No. 1. 
S 16 Qh. 23m., P.M. 34° 77° 27'.62 
N 16 3 20 - 35 7. 2212 
Dip, by thirty-two observations on needle No.1, ... .) .° . 16. 77° 24.87 
NEEDLE No. 2. 
N 16 3h. 40m., P.M. 35° 77° 23' 37 
Ss 16 4 06 mM 34 .5 77°. 23' 37 
Dip, by thirty-two observations on needle No.2, . . . . . . 77° 23'.37 
Dip, by sixty-four observations on needles Nos. 1 and2, . . . ci le” 
Cloudy, and sometimes raining during the observations. Wind south and squally. 
A few flakes of snow fell before the observations were begun. 
XXV. Peconk Hill, New Brunsnick. 
At astronomical station No. 5, on the meridian of the monument at the source of the 
river St. Croix. Latitude 46° 59’ 25”, N.; Longitude 67° 46’ 45”, W. 1841, Novem- 
ber 28th. 
