MAGNETIC OBSERVATIONS MADE AT PANAMA. 5 



Observation for the Magnetic Inclination. 



Needle A. — Station, Chagrcs, near tlio centre of the plateau, east from the vilkigc, and 94 feet east from 

 a ruin consisting of two rows of brick pillars, five pillars in each row, and about ten feet in height. Inslrn- 

 ment, "Fox magnetic circle, made by W. George, of Falmouth ; the property of the United States." Observ- 

 er, A. W. Whipple. Latitude, 9° 20' north. Longitude, 80° 01' 21" west of Greenwich, = 5'' 20'" 05'-41. 

 Face of instrument, north, needle perpendicular, reading of azimuth circle, 23°. .'jl. Face of instrument 

 south, needle perpendicular, reading of azimuth circle 23°. 51. Reading of azimuth circle, when the vertical 

 circle was in the magnetic meridian, 23°. 51. Dale, March 13th, 1849. Weather, clear. 



Mean result for magnetic inclination of needle A, 31° 54'.5. 



Needle B. — Station, Chagrcs, near the centre of the plateau. Instnwienl, Fox magnetic circle, made 

 by VV. George, and the property of the United States. Observer, A. VV. Whipple. Latitude, 9° 20' north. 

 Longitude, 80° 01' 21" =: 5''" 20'"- 05'.41. Face of instrument, 7wrth, needle perpendicular, reading of azi- 

 muth circle, 24° 51'. Face of instrument, south, needle perpendicular, reading of azimuth circle, 25° 0.5'. 

 Reading of azimuth circle, when the vertical circle was in the magnetic meridian, 24° 58'. Date, March 

 14th, 1849. Weather, clear. 



Mean result for magnetic inclination of needle B, 32° Ol'.S. 



