314 BULLETIN UNIVERSITY OF MONTANA. 



and vegetation was of the same general character as that of McDonald 

 lake. 



From this place the expedition moved directly to the University 

 of Montana Summer Station at Bigfork. From this as a base excursions 

 were made into the Swan range. The first was to Echo lake. On thia 

 trip MacDougal peak was ascended. Camp was later moved to Rost lake. 

 From there a trip was made to Wolf creek canyon, to Silloway mountain, 

 then around Wolt creek head, over Craig mountain, and return to 

 camp. Wolf creek valley is heavily timbered with bull pine, larch and 

 Douglas spruce. On the mountain side the Douglas spruce predominates, 

 but near the summit of the range gives way to a small scrubby pine. The 

 soil is scanty on the hills and is covered by a species of yucca known 

 locally as bear grass. 



On this trip the Usnea was noticed at the elevation of 5,800 feet on 

 the south-western slopes, and not above 5,000 feet on eastern and northern 

 slopes. 



The second trip from Bigfork was to Swan lake. No collecting was 

 done except along shore. 



The distances between the various stations have never been measured 

 and are rather uncertain. The elevations were determined by Prof. M 

 J. EIrod, of the University of Montana. 



W. P. HARRIS. 



125 St. Marks Ave., Brooklyn, Februarv 9, 1902. 



