MAGNETIC OBSERVATIONS AND RESULTS. 229 



Magnetic dip.— Genoa, Xerada,June 14, 1850.— Needle Xo. i.—Obserccr, Lieutenant Putnam. 





Xeedle Xo. 2.—0(>.sercer, Liruhnant 1'ufmnu. 



[Form used.] 

 Magnetic declination or azimuth between the true and magnetic r 



From magnetic station to magnetic south point (mirror above) : 



