PORTRAITS OF AMERICAN TREES, NATIVE 
AND NATURALIZED 
WITH A GUIDE TO THEIR RECOGNITION AT ANY 
SEASON OF THE YEAR AND NOTES ON THEIR 
CHARACTERISTICS, DISTRIBUTION AND CUETURE 
By Clarence M. Weed, D. Sc. 
Photographed from nature by Arthur I. Emerson 
PART I 
The White Pine -Pinus Strobus. 
The Catalpa —Catalpa catalpa. Catalpa bignomoides 
The Large-Toothed Aspen -Pop ulus grandidentata 
The Horse-Chestnut —JEsculus Hippocastanum 
The Box Elder or Ash-Leaved Maple —Acer Negundo 
The White, Paper or Canoe Birch Benda papyrifera 
