OF WASHINGTON. 97 



June, 1901, in company with three others, to this mountain.* 

 He described the country traversed on the way thither, along the 

 Penobscot river. Mt. Katahdin is 5,150 feet in altitude and 

 seven miles in length. It consists of three peaks, one to the 

 north and two in the south. Between the two latter stretches a 

 table-land which had hitherto been considered inaccessible. The 

 portion of the mountain leading to the table-land is called " the 

 Slide." It is i ,000 or i ,200 feet long and very difficult of ascent. 

 This table-land, which they succeeded in reaching after an ardu 

 ous climb, has a growth of mountain hemlocks and sedge, and is 

 strewn with granite boulders. A brownish or blackish-gray moss 

 grows abundantly. Here a species of butterfly belonging to the 

 genus Chionobas and, at the time, thought to be semidea, but 

 afterwards described by Mr. Newcomb as a distinct species, 

 katahdin^ was found. The weather was very foggy and cloudy 

 most of the time, so they did not remain long upon the table-land, 

 but Mr. Newcomb and another entomological member of the 

 party returned to it again on the following day. Forty-nine 

 specimens of the Chionobas were then secured. When resting 

 upon the moss-covered ground it was well protected by its color. 

 He noticed a curious habit it had of resting with its body and 

 wings lying over sidewise. The wind was very strong and the 

 butterflies flew close to the ground, usually within two feet of it, 

 to avoid being blown down from the table-land. If they were 

 blown oft', as sometimes happened, they would strive to get back. 

 Mr. Newcomb made the trip again on the third day. On the 

 way up, Limenitis arthemis was observed very commonly, but 

 scarcely any were seen on the return trip. 



In the discussion of this, Dr. Dyar said he thought it remarka 

 ble that a form of Chionobas not semidea should be found on Mt. 

 Katahdin, as semidea was the form occurring upon Mt. Wash 

 ington. C. katahdin, though hardly a distinct species, seemed 

 nevertheless to be a good local form or race. Mr. Morris said 

 that botanists have made some very exceptional finds on Mt. 

 Katahdin, but that all their trips made thither have been short. 



The last paper read was the following : 



* See Mr. Newcomb's article in Entomological News, October, 1901, pp. 

 225-231. 



