20 On the generardistrihution of Terrestrial Magnetism, ^c. 



TABLE IV — CONCLUDED. 



No. 



Station* 



Declination. 



144 San Diego, 

 I « It 



145 

 146 



147 



148 

 149 



150 

 151 

 152 

 153 

 154 

 155 

 156 



San Pedro, 

 Point Conception, 

 San Luis Obispo, 

 Point Pinos, 

 San Francisco, - 

 Bucksport, 

 Humboldt, 

 Ewing Harbor, - 

 Cape Disappointment, 



u 



Scarboro' Harbor, 



Waddah Island, Nee-ah Bay, 



12 

 12 



13 



13 

 14 

 14 

 15 



17 

 17 

 18 

 20 

 20 

 21 

 21 



28 

 32 

 37 

 50 

 13 

 57 

 25 

 0^ 

 00 

 28 

 19 

 45 

 27 

 41 



-0 



+ 



+ 



21 



25 



18 



5 



6 







10 



14 



16 



6 



22 



4 



7 



8 



Dip. 



57 38 

 59 32 



59 42 



Hor Intensity. 



-h 33 



« 17 



+ 45 



71 07 



6-30 

 6'17 



603 



_ 04 

 _ 01 



_ -03 



4-32 



00 



i: 



^Supplementary Note,- — ^The following results of observations 

 recently made in Mexico for the Smithsonian Institution are 

 added here, with the permission of the Secretary, from his 

 eleventh report to the Eegents. 



The observations were made under the direction of Baron 

 Mueller, of Marseilles, by Mr. A. Sonntag, with the modern im- 

 proved instruments. 



N. 



Name of station. 



1 Vera Cruz, 



2 |Potrero, • . . 



3 .Orizaba, ...•.»., 



4 ISt. Andres Cbalc, 



5 JMirador, 



6 'City of Mexico, . . 



L&t. 



19 12 

 18 56 

 18 53 



18 59 



19 13 



Long, 

 o 7 



96 09 



96 48 



97 04 

 97 14 

 96 37 



19 26i96 05 



Decl. 



east. 



8 17 

 8 39 

 8 28 

 8 13 

 8 02 

 8 46 



Dip. 

 "o 7 



43 58, 

 42 51 



42 61 



142 38 



43 48 

 41 26 



Horizontal 

 intensity. 



7'6B3 



7'576 



7-679 



7-594 

 7-528 

 7-581 



M 



mom 



n?t. 



0-4951 

 0-4946 



Date 1856. 



0-4916 



0-4896 



August 7-8. 

 August 16-17. 

 August 26^27. 

 September 17-18 

 October 9-1 L 

 December 10-17. 



I 



1. At the villa La Guaca, two hundred yards south of the city. 



2. In the State of Vera Cruz. 



4 



8. In the State of Vera Cruz. 

 4. St. Andres Chalchecomula. State of Puebla. 

 6. In the State of Vera Cruz. 



6. On the arched roof of the church of the convent of St. Augustine, at the sam« 

 place -where Humboldt made his observations. 



