EXPEDITION TO POINT BARROW, ALASKA. 



509 



Reduction of observations for azimuth of magnetic marks at the United States mctcorologic and magnetic 



polar station, Uglaamie, Alaska. 



[A. C. Dark, observer.] 



* Station: First magnetic observatory, first position, magnetometer pier. Mark, wire on dwelling-honse. 



t Station : First magnetic observatory, second position, magnetometer pier. Mark, 300 yards north (magnetic) Ironi observatory. 



} Station: Second magnetic observatory, declinometer pier. Mark, same as on July 25, 1882. 



H. Ex. 44 72 



