264 



MAGNETIC OBSERVATIONS ON THE BOUNDARY LINE 



ObservatioTis of Declinations, 



No. 



Station. 



1 



3 



5 



6 



8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 



23 

 24 

 25 

 26 

 27 

 28 

 39 

 30 



Dollar Point 



East Base 



Jupiter 



Rio Grande, mouth 

 Einggold Barracks. 

 Port Mcintosh,,.,, 



Eagle 



Presidio del Norte 



Mouth of CaHon 



Emory's Initial Point 



Frontera, 



Oofta Ana 



Carrizalillo 

 Espia 



Copper Mines.,.., 



Ojo delPerro 



San Luis Springs. 

 San Bernardino. . 

 Santa Cruz River 



IjOs Nogales 



San Pedro 



Ptmos Villages . , , 

 Gila Junction. ... 



San Isabel 



Camp Riley..... , 



San Diego 



San Diego C. S,. 



Monterey 



San Francisco .,. 

 Salt Lake City... 



Latitude 



29 

 29 



26 

 13 



28 55 



25 57 



^ 23 



27 30 



28 43 



29 34 

 31 02 

 31 47 



31 49 



32 22 



31 51 



31 21 



32 48 

 31 31 

 31 20 

 31 20 

 31 18 

 31 21 



33 



33 

 32 



32 

 33 



36 

 37 

 40 



Longitude. 



94 



53 



59 



110 



C7 



111 



43 



114 



09 



116 



36 



1 



117 



42 



117 



41 



•117 



38 



121 



48 



1S£2 



46 



113 



- 





94 55 



95 20 



97 07 



98 43 

 100 05 

 100 30 



104 25 



105 37 



106 28 

 106 29 



106 45 



107 56 



107 56 



108 04 

 108 20 



108 48 



109 14 



110 31 

 110 51 



40 

 44 

 53 

 38 

 05 

 13 

 13 

 54 

 27 

 08 



Date. 'Declination east,, Declination east,[ Residual, com- 



observed. 



1848 

 1853 

 1853 

 1853 

 1853 

 1852 

 1852 

 1852 

 1852 

 1855 

 1852 

 1851 

 1855 

 1855 

 1851 

 1855 

 1855 

 1855 

 1855 

 1855 

 1851 

 1851 

 1851 

 1852 



1849 



1849 



1851 

 1851 

 18S9 



1850 



8 



57 



9 05 



9 09 



9 00 



9 15 



10 00 



10 01 



10 16 

 12 01 



11 55 

 IS 24 



12 07 

 12 02 

 12 05 

 11 ^ 

 11 59 

 11 45 

 11 45 



11 45 



12 13 

 12 25 

 12 52 

 12 50 



12 34 



12 57 



13 15 

 12 29 



14 58 



15 30 



15 34 



computed. 



puted — obs. 



9 03 



9 02 



9 10 



8 56 



9 18 



9 46 



10 07 



10 53 



11 28 

 11 48 



11 49 



12 02 

 11 58 



11 48 



12 18 

 11 50 

 11 52 

 11 53 



11 58 



12 00 



12 37 



13 46 

 12 45 

 12 55 

 12 44 

 12 47 

 12 48 



14 54 



15 34 

 15 34 



+ 06 



— 03 

 + 01 



— 04 

 + 03 



— 04 

 + 06 

 -f. 37 



— 33 



— 07 

 + 25 



— 05 



— 04 



— 17 

 + 56 



— 09 



+ 07 



+ 08 

 13 



+ 



13 



+ 12 



— 06 



— 05 



+ 21 



— 13 



— 28 



+ 19 



— 04 



+ 04 



00 



t 



