Muskingum to the south-cast. 



(The complete paper will be found published in the 

 Bulletin of the Scientific Laboratories of Denison 

 Universit}^ Vol. VIII, Part II, illustrated with maps 

 and sections.) 



Butterflies Common to Norway and Arctic North 

 America. By F. M. Webster, Wooster. 



The following species were mentioned, the list being 

 based on a list of the Lepidoptera of Norway, recentlj'^ 

 published by Dr. W. M. Schoyen, of Christiania, Norway. 



Papilio machaon Linn ; Pieris rapse Linn ; P. napi 

 Linn; Colias paJasno Linn; C. hecla Lef; Vanessa 

 antiopa Linn ; Pyrameis atalanta Linn ; P. cardui Linn ; 

 Argynnis chariclea Schn ; A. polaris B; A. freija Thbg; 

 A. frigga Thbg; Erehia disa Thbg. A number of these 

 are generally distributed over the United States, while 

 still others are to be found only in the Rocky mountain 

 regions, extending northw^ard to Alaska. 



Key TO THE Ohio Forest Trees. By W. A. Keller- 

 man. 



An artificial key on the dichotomal method. The 

 characters made use of are drawn principally from the 

 leaves. The fruits also are sometimes referred to, as are 

 the flowers when very conspicuous. Full descriptions 

 of all the species are appended. 



New Stations for Ohio Plants. By W. C. Werner. 



The paper gives a list of fourteen species with 

 Stations indicated, also the names of the collectors; also 

 notes on some of the plants. 



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