' 65 



Another purpose of the trip- — that in which Mrs. Britton was 

 particularly interested — was the collection of the lichen-flora. 

 The meeting adjourned. 



Franxis W. Pexnell, 



Secretary. 

 February id, 1920 

 The first meeting in February was held at the American 

 Museum of Natural History. 



President Richards called the meeting to order at 8.30 p.m. 

 There were 28 persons present. 

 No business was transacted. 



Dr. F. W. Pennell gave an illustrated lecture on "Through 

 the Andes of Colombia." 



A brief account was given of the speaker's eight months' 

 sojourn in Colombia in 1917-18, of the extent of exploration 

 undertaken and of the collections made. Each of the three 

 Cordilleras of the Andes was ascended from the tropical lowland 

 to the paramo above timber-line. Emphasis was laid upon the 

 sharp delimitation of altitudinal zones of vegetation, and the 

 views shown were largely of species characteristic of each. 



Fra-S'cis W. Penxell, 

 Secretary. 



