538 Prof. T. E. Thorpe. On the Magnetic Inclination, [Apr. 4, 



April 4, 1889. 

 ProfesRor G. G. STOKES, D.C.L., President, in the Chair. 



The Presents received were laid on the table, and thanks ordered 

 for them. 



The Right Hon. Baron Henry de Worms, whose certificate had been 

 suspended as required by the Statutes, was balloted for and elected a 

 Fellow of the Society. 



The following Papers were read : 



I. "On the Magnetic Inclination, Force, and Declination in 

 the Caribee Islands, West Indies." By T. E. THORPE, 

 Ph.D., F.R.S. Received March 16, 1889. 



The following determinations of the magnetic elements among the 

 Caribees or Windward Islands were made in August, 1886, on the 

 occasion of the Eclipse Expedition of that year to Grenada. 



The instruments employed were magnetometer Elliott No. 61, and 

 Dip Circle Dover 83, belonging to the Science and Art Department. 



The method of observation was similar to that adopted in the 

 Magnetic Survey of the British Isles for epoch January 1st, 1886, for 

 which these instruments were also employed. 



I. ST. GEORGE, GRENADA. 



Station: Near the watering-place and close to the edge of the 

 southern shore of the harbour. 



Lat. 12 2' 52" N. Long. 61 44' 35" W. 



Inclination. 



Needle I. Needle II. 



Aug. 13, 1886 (2.45 to 4.10 P.M.) . . 40 53-8' 40 55'6' 



Horizontal Force, 

 (a) Deflections. 



Temp. Observed deflections. 



Aug. 13, 1886 29-1 14 7' 48'5" 



5 53' 41-2" 



