OBSERVATIONS OF INTENSITY. 



517 



The following Table contains Captain King's Observations of 

 Intensity, with the times of vibration corrected for the arc and 

 reduced to a standard temperature of 60°. 



Magnetic Intensity, observed by Capt. P. P. King between 1826 and 1831. 



Station. 



Greenwich ^ 



Madeira 



Teneritfe .c 



Port Praya [ 



Rio de Janeiro < 



St* Catharina ... 

 Gorriti 



Monte Video ... 



Port Sta Elena 

 Sea Bear Bay ... 



St. Martin Cove 



Port Famine ...^ 



Chiloe 



Juan Fernandez 

 Talcahuano |^ 



Valparaiso 



Date. 



1826 Mar. 22 

 1831 Jan. 24 



1826 May 31 



— June]2 



— — 22 



— — 24 

 _ Aug.29 



1827 Sept. 12 



— — 15 



— — 15 



1828 Dec.2i 

 1827 Nov. 3 



1826 Oct. 29 



— Nov. 6 



1829 Jan. 10 



1827 Dec. 18 



1828 Oct. 8 



1830 June 1 



1826 Dec. 4 



1829 Mar. 20 



1827 Jan. 15 



— — 15 

 ■ — — 22 



— Mar. 27 



1828 Jan. 28 



— May 8 



— June 18 



— July 30 



1830 Apr, 30 



1829 Sept. 1 



— Dee. 15 



1830 Feb. 19 



1829 Dec. 18 



1830 May 12 



1829 Aug 4 



1830 Jan. 1 1 



— Feb. 1 



Time. 



s. 



734,45 

 775,80 

 628,68 

 607,96 



559/53 

 557,58 

 546,36 

 552,06 

 552,95 

 553,73 

 553,48 

 562,55 

 554,42 

 550,68 

 549,63 

 564,12 

 555,12 

 562,00 

 565,41 

 557,26 

 577,36 

 584,88 

 583,48 

 585,82 

 585,82 

 589,75 

 596,49 

 595,86 



594,85 

 598,95 

 565,40 

 565,69 

 552,77 

 556,42 

 557,18 

 549,10 

 551,77 

 553,50 



Tlierm. 



o 



55,0 

 41,6 

 66,0 

 75,0 

 81,5 

 85,0 

 77,0 

 75,5 

 80,0 

 83,0 

 85,0 

 84,0 

 67,5 

 63,0 

 66,0 

 80,0 

 78,3 

 72,5 

 59,0 

 68,0 

 70,0 

 56,0 

 58,0 

 55,0 

 64,0 

 55,0 

 43,8 

 32,7 

 36,2 

 45,0 

 54,0 

 53,0 

 70,0 

 67,0 

 60,5 

 59,0 

 77,0 

 68,5 



Corrected „ i i 

 Time. Particular place. 



733,97 

 776,01 . 



627,79 

 606,73 



557,08 



545,16 



551,70 



561,05 

 553,58 



j> 549,44 

 562,78 

 553,87 

 560,95 

 564,89 

 556,42 

 576,37 



J 584,29 



585,08 

 589,36 

 596,54 



} 595,81 



598,97 



]• 565,23 



551,83 

 555.59 

 557,18 

 548,59 

 I 551,60 



Observatory, 



Consul's Garden 

 Fort St, Pedro. 

 Landing Place, 

 Quail Island. 



Rat Island. 



Anliatomirim. 



The Well. 



I South point neai 

 n the Sea. 



i Landing-place. 

 Landing-place. 



Head of the 

 Cove. 



Observatory. 



San Carlos. 

 Landing-place. 

 ^ Fort Galvez. 



Almendral. 



