90 



Results of Land Magnetic Observations, 1905-10 



NORTH AMERICA. 



United States Concluded. 



Station 



San Rafael, North Pier. 



Berkeley. . . 

 Goat Island . 



Goat Island, First 

 Secondary 



Presidio 



Norfolk 



San Diego, III. . . 



San Diego, C.& G. S. 1897 



San Diego, II. 

 San Diego, I . . 



Latitude 



37 52.2 N 

 37 48.7 N 



37 48.7 N 



37 47.5 N 

 36 52.4 N 



32 44.7 N 



32 42 N 



32 40.9 N 

 32 40.8 N 



San Diego, Secondary , 

 Waycross 



Miami. 



Knight's Key, 



Key West . 



32 40.8 N 

 31 13.9 N 



25 47.0 N 



24 42.6 N 



24 33.5 N 



Long. 

 East 

 of Gr. 



237 27 



237 44 

 237 38 



237 38 



237 32 

 283 44 



242 48 



242 48 

 242 47 



242 47 

 277 38 

 279 4S 



278 12 



Date 



Jul 

 Jul 

 Jul 

 Jul 



May 27,'08 

 May 26, 08 

 Jul 25,05 

 14.05 

 14,05 

 15-21 

 22,05 

 May 29,08 

 May 29. 08 

 May 30, 08 

 May 26-27 



May 30, 08 

 May 30, 08 

 Jul 17,05 

 Feb 11,05 

 Feb 14, 05 

 Mar 14,05 

 Mar 15.05 

 Aug 21,05 

 Dec 14, 05 

 15,05 

 14,05 

 14, 05 

 19,05 

 16.05 

 17,05 



Dec 



Aug 



Aug 



Aug 



Aug 



Aug 



Aug 21,05 



Dec 16,05 



18,05 



20 to 



3,06 



23,06 



24, 06 



29,06 



24,06 



25,06 



27,06 



27,06 



5 to 



11,06 



17,06 



5 to 



8,06 



16,05 



17.05 



14,05 



14,05 



Dec 



Jan 



Feb 



Jan 



Jan 



Jan 



Feb 



Oct 



Oct 



Oct 



Dec 



Dec 



Dec 



Dec 



Dec 



Jun 



Jun 



Jun 



Jun 



Nov 24, 08 



Nov 25.08 



Nov 26, 08 



Nov 27.08 



Nov 30, 08 



Nov 30, 08 



Dec 1 . 08 



Dec 1,08 



May 12,05 



May 13, 05 



Declination 



Local Mean Time Value 



h h 

 13.4, 15.1 



11.0 



10.2, 12.0 

 13.2, 15.0 



11.3, 13.5 



10.1, 11.7 



12.8, 14.3 



11.6. 15.0 



15.0 



15.4, 17.2 



10.2, 10.7, 13.0 



15.8, 16.0 



10.9. 13.3 



.2, 13.8 .. 



13.9, 15.4 

 14.4, 15.7 



10.2, 10.7 

 13.7 



17 32.3 

 17 34.2 

 17 34.0 



17 36.2 

 17 50.6 



17 47.8 

 17 52.1 



16 55.2 E 

 4 41.1 W 



4 36.2 W 

 14 38.8 E 

 14 40.4 E 



13 58.7 E 



14 27.6 E 

 14 40.8 E 



14 40.2 E 

 14 41.9 E 



13.2, 14.8 



10.2, 12.3, 13,6 



10.8, 14.6 



10.1, 14.6 



10.0, 11.5 

 13.4. 14.7 



15.7, 16.6 



I Various(6) 



15.1 



8.2, 9.6 



9.4. 10.7 



13.6, 14.8 



15.2 



10.4, 12.9, 16.2 



10.0, 13.7 

 9.8, 13.0 



9.9. 12.7, 15.1 



14 43.2 E 

 14 44.8 E 

 14 44.6 E 

 14 41.6 E 



Inclination 



L. M.T. 



14 45.8 E 

 14 45.4 E 



14 47.2 E 



14 46.6 E 



1 09.0 E 



1 13.8 E 



1 37.8 E 



1 35.2 E 



1 34.4 E 



1 34.1 E 



1 34.4 E 



2 04.4 E 



16.5 

 11.7, 



Various 



9.1, 15.1 

 16.2 



Various 



14.0 



12.6, 14.9 

 13.6 



11.8 

 10.1 



14.8 



9.5(wt.j) 

 14.5(wt.i) 



16.0 



11.5 



11.4 



10.8(wt.l) 



Value 



Hor. Intensity 



L. M. T. Value 



16.8 N 

 10.2 N 



62 06.0 N 



62 05.6 N 



62 05.0 N 



62 05.3 N 



62 05.8 N 



62 06.5 N 



62 43.0 N 



68 40.8 N 

 68 39.3 N 



58 03.4 N 



58 07.4 N 



58 09.2 N 



58 04.7 N 



58 02.5 N 



58 05.4 N 



58 06.4 N 



12.1 58 05.0 N 



12.1(wt.i) 58 08.0 N 



Various 



9.6. 11.3, 11.6 

 8.6. 10.4 



2 33.6 E 

 2 31.6 E 



Various(8) 



Various(6) 



11.1 



15.5. 16.1 



13.8 

 14.6 



h h 

 13.8, 14.6 



12.5, 13.8 

 10.9, 11.8 

 13.8, 14.8 



12.2, 13.2 



10.5, 11.2 



13.2, 13.9 



12.4, 14.3 



14.3 .. 



16.1, 16.8 .21338 



r 



.25120 



.25256 

 .25299 



.25276 

 .25225 

 .25252 

 25234 



11.8, 12.8 



14.3, 15.0 

 14.7. 15.3 



14.1. 14.7 



58 05.9 N 



58 05.8 N 



58 06.0 N 



58 06.3 N 



62 19.8 N 

 56 33.3 N 



56 55.7 N 



14.0 

 10.9 



55 31.5 N 



54 57.1 N 

 54 56.0 N 



10.8, 11.8 

 11.8, 13.9 

 10.4, 14.1 



10.4, 

 13.7, 



11.2 



14.3 



S1374 



.27680 

 .27730 



.27734 



.27714 

 .27726 

 .27678 



8.5. 

 9.8, 

 13.9. 



9.1 

 10.4 



14.4 



14.4, 

 14.9 

 10.5. 

 10.3, 

 15.6 



9.9. 

 14.3 

 10.1, 



9.0, 



15.6 



13.0 

 11.2 



13.2 



10.9 

 10.0 



.27682 

 ,27702 



.25993 

 .28694 

 .28707 



.28366 

 .eSSSB 

 .28370 

 .28843 

 .S8S64 

 .28867 

 .28900 

 .29410 

 .29381 



Instruments 



Mag'r Dip Circle 



36 

 36 



36 



4 

 4 

 4 



J 69 

 19 



34 

 17 

 36 

 36 



36 



36 

 36 



36 

 36 



36 

 36 

 36 

 36 



36 

 36 



1 



ISS& 



1 ITS 



19 



19 



19 



19 



7 



7 



17S 



7 



7 



17g 



7 



7 



19 

 19 



178.12 

 169.12 



Various 



178.12 

 178.12 

 Various 



178.12 

 189.56 

 169.12 



171.12 

 34.12 



171.12 

 169.12 

 169.12 

 171.12 

 171.12 

 171.12 

 169.12 



171.12 

 169.12 



Various 



35.12 & 

 178.1256 



35.12 & 

 178.1256 



171.12 

 171.12 



172.12 

 172.12 



171.12 

 171.12 



Obs'r 



G III 

 G III 

 G I 

 G I 

 G I 

 G I 

 G I 

 G III 

 G III 

 G III 

 G III 



G III 

 G III 

 G I 

 J PA 

 J PA 

 DCS 

 DCS 

 G I 



G I 



G I 



G 1 



G I 



G I 



G I 



G I 



G I 



G I 



G I 



G II 



G II 

 G II 

 G II 

 G II 

 G II 

 G II 

 G II 



G II 



G in 



G III 



J PA 



J PA 



J PA 



J PA 

 WHS 

 WHS 

 WHS 

 WHS 

 WHS 

 WHS 

 WHS 

 WHS 



J PA 



J PA 



