MAGNETIC SURVEY OF GREAT BRITAIN. 



75 



The remaining five needles were observed in the usual eight 

 positions, but in consequence of imperfect workmanship re- 

 quired corrections, which, by comparison with the standard 

 needles, were assigned as follows : 



J=+7 C2=+5 R3=-8 



C=+2 C3=+8 



Wherever these needles are employed, the proper corrections 

 are applied in a column in the table headed " corrected dip." 



Table XV. 

 Captain J. C. Ross's Observations of the Dip. 



g Poles. 



g a direct, 



^ & reversed. 



Corrected 

 Dip. 



Mean Dip. 



Place of 

 Observation. 



mdon . 



iishey . 



'irtington. 



iventry. 



1837. h m 

 Aug. 9 10 p.M, 



3 p.M 



:rminghatn.. 



Iifford. 



— 10 



July 31 



— 30 



Aug. 27 



— 28 



— 15 



Sept. 1 



— 4 



— 7 



1 10 p.M 



A.M, 

 P.M 



5 30 P.M, 



10 30a.m, 

 5 30a.m, 



8 A.M, 



Noon 



5 15 p.m. 

 5 30 p.M, 



Noon 



3 40 p.M 



Noon 



30 p.M 



1 40 



4 



1 p.M, 



2 20 

 4 



4 30 p.M, 



RL 1 



RL 2 



C 1 



RL 

 RL 2 

 RL 2 

 RL 



RL 

 RL 



a 69 31-8 

 li 68 46 

 « 69 01 

 /3 69 28 

 69 27-3 



68 59-1 



69 4-2 

 /5 69 17-8 



a. 68 58-4 

 /3 69 41-3 

 69 35-1 

 69 101 

 69 7-6 

 69 38-5 



a. 69 9-2 

 /3 68 25-6 

 a. 68 39-8 

 /3 69 IM 

 69 8-2 

 68 37-6 



RL 1 69 46-8 

 RL 2 69 26-8 

 a. 69 26-5 

 j3 69 49-6 

 «, 69 57-5 

 /3 69 15-6 



RL 2 



RL 1 



C 



RL 1 



RL 2 



C 



69 8-9 



69 14-1 



69 13-2 



69 11 



69 19-9 

 69 22-6 

 69 23 



68 47-4 

 68 55-4 



68 52-9 



69 36-8 

 69 38-1 



69 52 



70 16 



a, 69 45-3 

 |3 70 3-9 

 a. 69 26 

 /3 70 16 



70 19-8 

 69 57-6 

 a. 69 54-6 

 /5 70 21-6 

 a 70 24-2 

 /3 69 36 -4 



69 15-9 

 69 161 

 69 16-2 

 69 16 



69 21-9 

 69 25-6 

 69 26 



68 54-4 

 68 57-4 



68 55-9 



69 39-8 

 69 40-1 



69 43-5 



70 7 

 69 56-6 



69 58 



70 11-7 

 70 10-1 

 70 7-3 



69 16-05 



69 24-5 



68 55-9 



69 4M 



■70 0-5 



70 Q-7 



Westbourne 

 Green, Har- 

 row Road. 



In the garden 

 of Bushey 

 Lodge. 



In the garden 

 of Tortington 

 House, near 

 Arundel. 



In the garden 

 of the Wheat- 

 sheaf Inn. 



In a field half 

 a mile south 

 ofSt.Mar tin's 

 Church. 



In the garden 

 of the New 

 Inn. Old 

 Church, N, 

 34° W. (true) 

 half a mile. 



