54 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 72 



point as it is at the mouth of the canyon on the edge of the Yukon 

 Valley, thus combining to some extent the mountain and plain fauna. 

 After five days here. Doctor x^ldrich went north on the railroad to 

 Nenana, collected there for only part of a day and continued the fol- 

 lowing day on the narrow gauge line, recently acquired by the govern- 

 ment, to Fairbanks, his destination. It had been intended to spend 



Fig. 53 — North side Lynn Canal near Skagway, Alaska. 



Fig. 54. — Glacier on Lynn Canal. Alaska. 



most of the collecting time in the vicinity of Fairbanks, but the trip 

 had taken much longer than expected, so he stayed only a week at 

 this point. 



The Tanana Valley at Fairbanks is typical of the Yukon Valley in 

 general, as far as the species of insects are concerned. Although it 

 is within about 100 miles of the Arctic Circle, it has a fairly hot 

 summer on account of the extremely long period of sunshine in the 

 day. Some farms are developed and the government experiment sta- 

 tion has been demonstrating for many years that the usual garden 



