Magnetiske Intensltets-Iagttagelser. 111 



the water worn boulders of conglomerate rock near 

 the -water fide at the landing place» 



No. 





 10 

 20 

 30 



ao 



50 



60 

 70 

 80 

 90 



Time I No* 



18' 51"01100 

 50,o!llO 



8,5J120 

 27,01130 

 46,o!l40 



4,5|l50 

 23,5|l60 

 42,31170* 



0,7J180 

 19,51190 



19 



20 



21 



Time 



21' 

 22 



25 



24 



200 

 210 

 16,01220 

 34,0! 230 

 53,0J 240 

 11,5|250 

 30,5|260 

 46,5|270 

 4,02 280 

 22,38290 



Time I No. 



24' 4l''0 

 59,5 

 18,3 

 37,01 

 55,7 

 14,0 

 33,0 

 51,5 

 10,0 

 29,01 



25 



26 



27 



300 

 310 

 320 

 330 

 340 

 350 

 360 



Time 



27' 

 28 



29 



47''3 

 6,0 

 24,7 

 43,0 

 1,7 

 20,0 

 39,0 



Su mm a ry 

 — 300 = 9' 16'3 



10 — 310 — 

 20—320 v 

 30 — 330 

 40 — 340 

 50 — 350 

 60 — 360 



Mean 

 or 



16,0 

 16,2 

 16,0 

 15,7 

 15,5 

 15,5 



Latit. 14'' 54' 8" N. 

 Longit.23°32'3' W, 

 Dip 45 26 N. 

 Variat. 16 Weft. 

 Ba rom. 30,20 inch. 

 Therm. 81,5 F. 

 Rate of Watch.— 0'49 



No. Arc. 

 — 20" 

 100—10 

 200 — 6 

 500 — 3 

 360—1»- 



9' 15'86 



555'36 



ISTo. 4. Port Praya (second observation), 



Another obfervation was made at the South end 

 of Quail Island (an island in the bay^, where fome 

 of our obfervations were tåken* The geological cha- 

 racter of the rocks being a Jftratum of Columnar Ba- 

 Jålt incumbent on Tufa and Scoriæ. The inftrument 

 was placed on the ground at about 30 feet above the 

 level of the fea. 



*) Ved Feiltagelfe maa her yære 

 iftedetfor lo. 



tællet 8 Svingninger 

 H. 



