284 PRACTICAL ARBORICULTURE 



Common Name. Scientific Name. Height in feet. Girth, in. 



Black Birch Betula Nigra 35 62 



White Birch Betula alba > 35 43 



White Ash Fraxinus alba 29 39 



White Mulberry Morns alba 20 56 



Black Locust Robinia pseudacacia 35 54 



Catalpa Catalpa speciosa 30 48 



Red Oak Quercus rubra 40 46 



Black Oak Quercus tinctoria 25 32 



Burr Oak Quercus macrocarpa 26 20 



TREES OF THIRTY-ONE YEARS' GROWTH. 



Norway Spruce 40 74 



Hemlock 35 54 



Balsam Fir 40 54 



White Pine 40 69 



Red Cedar : 30 52 



European Larch 60 90 



Sugar Maple 55 65 



Buckeye 28 53 



Wild Cherry 45 89 



Catalpa _ 50 57 



Yellow Poplar 45 72 



Beech 35 54 



Chestnut 50 90 



Burr Oak 45 74 



Willow Oak 45 79 



Ailantus 45 4 



TREES OF TWENTY YEARS' GROWTH. 



Common Name. Scientific Name. Girth. 



Sweet Gum Liquidamber stryaciflua 53 



White Elm Ulmus Americana 65 



Hickory Carya amara 48 



Sycamore Platanus occidentalis 78 



Burr Oak Quercus macrocarpa 50 



Cottonwood Populus monilif era 93 



Willow Salix Laurifolia 75 



Blue Ash Fraxinus quadrangulata 50 



Honey Locust Gleditschia triacanthos 60 



Buckeye Aesculus glabra 42 



Kentucky Coffee Tree. . . Gymnocladus Canadensis 52 



We find that in the hard soil of the parks without cultivation, for many 

 years, these trees have made excellent saw timber in from 14 to 20 years. 



