248 



EXPEDITION TO FOIST T3AEROTT, ALASKA. 



sJioielntj thdHempmttiirc of the air at I'yluamic from OHolier, 18S1. 1o Aiifnint, 1S83 Continued. 



ihc Iliermuiiictrrjil'ori- tl :.in-ilm-etoim-aiiloc:iltinn-. 5 Imurs 



17 minutes.] 



