EXPEDITION TO POINT BARROW, ALASKA. 



409 



Hourly readings of Ilia Brooke declinometer, Ugluumie, Alaska, Nofnuhrr, 1882. 



* Both scales mado to road 500 at 4 h 52 m p.m. by readjustment of instrument. Correction to each wading ".November 1, O h to 17 h , inclu- 

 sive, ]<!.() t Readjust in;; instrument, new determination of scale valne. N. 11. Xovi-mlier 'JO at O' 1 muentr oil' >c.:!i' b low 180 divisions; 

 again November 21 at lrt h oft *<;;]( iibove 20, the intended extensions to the scale not having been rnado. Atouthly mean, 4S9.8 



