1889.] Force, and Declination in the Caribee Islands. 539 



(&) Vibrations. 



Temp. Time of one vibration. 



Aug. 13, 1886. . . . 32-6 .... 3'0540 sees. 



ees. 1 



5? J 



o.AKq7 i AU-GCI.LJ. = 3'0538 sees. 



m = -00103109. H = 3-1093. 



Declination. 

 (a) Geographical Meridian. 



Local appt. time 

 of passage of ... 



centre. Correct, for Geographical 



hr. m. s. Q alt. mirror. meridian. 



Ang. 13, 1886. . 43329 .... 23 40' .... -O'l .... 252 14' 



(b) Magnetic Meridian. 



L.M.T. Magnetic 



hr. m. Torsion. meridian. 



Aug. 13, 1886. ... 4 14 .... -0'4' .... 252 55-9' 



II. HOG ISLAND, BAT OF CLARKES COURT. 



Station : Site of Eclipse Station ; on a creek on the eastern side of 

 the Island. 



Lat. 12 0' 40" N. Long. 61 43' 45" W. 



Inclination. 



Needle I. Needle II. 



Aug. 25, 1886 (10.30 to 12.10). ... 41 14' .... 41 14-2' 



Horizontal Force. 

 (a) Deflections. 



Temp. Observed deflections. 



Aug. 22, 1886 (11.5 to 11.31). . 29'7 .'. . . 14 8' 387" 



5 54' 137" 



(6) Vibrations. 



Temp. Time of one vibration. 



Aug. 22, 1886 .... 28-8 .... 3-0573 sees. J mean = 3 . 057? gecg> 



m = 0-00102963. H = 3-1000. 



'2 o 2 



