100 



PBINCIPLES OF AMERICAiq^ FORESTRY. 



TABLE SHOWING THE APPROXIMATE HEIGHTS OF ONE- 

 YEAR-OLD SEEDLINGS GROWN ON GOOD AVERAGE 

 SOIL IN UmNESOTA— (Continued). 



Botanical Names. 



Common Names. 



Height in 

 Inches. 



Ulmus americana 



Ulmus rocemosa 



Ulmus puhescens 



Celtis occidentalis 



Morus rubra 



Morus alba tartarica. . . . 



Pyrus ioensis 



Pyrus americana 



Pyrus sambucijolia 



Amelanchier canadensis. 

 Crataegus tomentosa. . . . 



Prunus americana 



Prunus pennsylvanica. . 



Prunus serotina 



Prunus virginiana 



Gleditsia triacanthos . . . . 

 Gymnocladus dioicus. . . 

 Robinia pseudacacia. . . . 



Acer saccharum 



Acer platanoides 



Acer rubrum 



Acer saccharinum 



A cer pennsylvanicum . . . 



Acer tartaricum 



Acer negundo 



Msculus hippocastanum. 



Msculus glabra 



Rhamnus catharticus . . 



Tilia americana 



Elceagnus angustifolia. . 

 Fraxinus americana. . . . 

 Fraxinus lanceolata . . . . 



Fraxinus nigra 



Catalpa speciosa 



Viburnum lentago 



White Elm 



Cork Elm 



Slippery Elm 



Hackberry 



Red Mulberry 



Russian Mulberrj' 



Wild Crab 



American Mountain Ash. 

 Elderleaf Mountain Ash . 



June-bem^ 



Black Thorn 



Wild Plum 



Wild Red Cherr>' 



Wild Black Cherrj^ 



Choke Cherry 



Honey Locust 



Coffee-tree 



Locust 



Sugar Maple 



Norway Maple 



Red Maple 



Soft Maple 



Striped Maple 



Tartarian Maple 



Box-elder 



Horse Chestnut 



Ohio Buckeye 



Buckthorn 



Basswood. 



Russian Olive 



White Ash 



Green Ash 



Black Ash 



Hardy Catalpa 



Black Haw 



6-12 



6-10 



10-20 



8-10 



6-10 



6-12 



4-8 



8 



4-8 



8 



4-8 



15 



12 



12 



12 



8-12 



8-12 



24 



12 



12 



10 



24 



4 



4 



12 



6 



4-6 



6-12 



6-12 



12 



12 



12 



8 



24 



4-6 



size of seed and dryness. In the case of the Birch there 

 are perhaps four hundred thousand; in Scotch. Shortleaf, 

 Red Pine, and Norway Spruce there are perhaps seventy 

 thousand; in White Pine about thirty thousand; in Box- 



