Contr. Nat. Herb.. Vol. 22. 



Plate 40. 





'--■z' -■ . ..-^-^^ •'»*>'-^''^- '-*•:•>>-'. 'i-e»^>t 



A Shore of Lake McDonald. 



The trees are chiefly larch and western white pine; those alonp the beach are Cottonwood, mountain 



alder, and canoe birch. 



B. Sphagnum Bog at Johns Lake. 



The encroachment of the forest is indicated by the young trees. The portion of the bog shown is 

 overgrown with coarse grasses and is not typical. Pondlilies are growing in the lake. 



