of 



PAGE 

 Silver maple flowers . . . . . . . 4 



Young leaves of the red maple . j . . . 7 

 " The Norway maple breaks into a wonderful bloom " 9 



Samaras of the sugar maple . . . .11 



A mature sycamore 'maple . . . . . .13 



Sycamore maple blossoms . . . . . .15 



Flowers of the ash-leaved maple . . . . .17 



Ash-leaved maples in bloom . . . . .19 



Striped maple . . . . . . .21 



The swamp white oak in winter .... 29 



Flowers of the pin-oak . . . . . .31 



The swamp white oak in early spring ... 36 



An old post-oak . . . . . 39 



A blooming twig of the swamp white oak . . . 41 

 Acorns of the English oak . . . . .47 



A lone pine on the Indian river . . . , 53 

 Hemlock Hill, Arnold Arboretum .... 56 



The long-leaved pines of the South . . . .61 



Fountain-like effect of the young long-leaved pines . 62 

 An avenue of white pines . . . . . .67 



Cones of the white spruce . . . . . 71 



An apple orchard in winter . . . . .78 



When the apple trees blossom . . . . .81 



The Spectabilis crab in bloom ..... 84 



Fruits of the wild crab ...... 87 



The beauty of a fruiting apple branch . . 91 



(ix) 



