LIEUT.-COLONEL SABINE ON TERRESTRIAL MAGNETISM 
23 
has been given an equal influence on the general mean, without reference to the 
number of observations which were made with it. 
Table VII. — Abstract of observations with the Intensity Needles, Nos. 5, 6, 7, and 8, at the undermen- 
tioned Stations. 
1837. 
Needle. 
Time. 
Therm. 
Corrected 
March 10 
5 
s 
471*7 
791 
s 
March 10 
5 
473-7 
79/ 
470-4 
March 10 
6 
512-5 
80 i 
510-4 
March 10 
6 
512-6 
72/ 
March 12 
7 
532-7 
71 
531-2 
March 12 
8 
470-4 
76 
468-4 
August 28 .... 
5 
736-7 
50 
738-7 
August 28 .... 
6 
792-4 
50 
794-5 
1838. 
January 17 .... 
6 
508-1 
88 
504-5 
January 17 .... 
7 
530-7 
91 
526-5 
June 20 and 21 
5 
487-1 
68 
486-1 
June 25 
6 
525-0 
79 
522-4 
June 27 
7 
546-1 
72 
544-6 
June 27 
8 
483-8 
70 
482-6 
September 23 . . 
5 
476-1 
78 
473-7 
September 23 . . 
6 
514-3 
79/ 
September 23 . . 
6 
515-3 
78 
September 1 7 • • 
6 
517-5 
99 
September 17.. 
6 
517-4 
99 
> 
510-5 
September 19 . . 
6 
517-1 
93 
September 20 . . 
6 
509-7 
86 
September 20 . . 
6 
510-8 
88 j 
October 28 .... 
5 
475-3 
82? 
472-6 
October 28 ... . 
6 
514-6 
82? 
511-7 
October 28 .... 
7 
536-8 
82? 
533-7 
October 28 .... 
8 
471-4 
82? 
468-7 
1839. 
March 16 
March 16 
5 
5 
476-4 
476-1 
841 
85/ 
473-2 
March 16 
March 16 
7 
7 
536-8 
535-3 
80 1 
88/ 
532-9 
March 16 
March 16 
8 
8 
471-8 
471-0 
88 1 
86/ 
468-1 
Station. 
Remarks. 
Panama 
Port Etches 1 
Acapulco ^ 
Callao. 
Puna Island (Guayaquil)< 
Panama 
I 
Panama 
Chron. L. 8 s -6. 
Chron. L. 8 s -6. 
Mean of 80 observations. 
Mean of 90 observations. 
| P l Spanola. 
j- P a Arena. 
P l Barranca. 
Town of Puna. 
^j>Therm. not recorded. 
Table VIII 
— Observed values of the Horizontal Intensity. 
Station. 
Needle. 
Corrected 
Time. 
Horizontal Intensity. 
Panama = 1000. 
Remarks. 
Port Etches < 
Acapulco < 
Callao -i 
Puna Island ■ 
r 
' 
5 
6 
6 
7 
5 
6 
7 
8 
5 
6 
s 
738-7 
794-5 
504-5 
526-5 
486-1 
522-4 
544-6 
482-6 
473-7 
510-5 
408 1 
414 
10261 
1023 j 
943 / 
957 
957 
942 
993 1 
1002 j 
411 
1024 
>950 
>998 
