284 



PRINCIPLES OF AMERICAN FORESTRY. 



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Cottonwo 

 Populus angusti- 

 folia, James. 

 Height, 50 to 60 ft. 

 Diameter, H to 2 ft. 



Black Cottonwood 

 Populus tricho- 

 rpa, Torr and Gr. 

 ight, 175ft.+ 

 ameter, 7 to 8 ft. 



Fremont Co 

 wood 

 Populus fre 

 Watts. 

 Height, 

 Diameter, 5 



d 

 pl 

 Loid 



Cottonwoo 

 (Necklace Po 

 Populus delLo 

 Marsh. 

 eight, 100 to 150 

 iameter, 2 to 7 



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