Sifiver or Soft Maple. This is a very rapid growing tree of med- 

 ium to large size with high spreading top that casts a good shade. 

 The liimbs grow long and slender and are easily broken by the wind. 

 It is medium resistant to drouth and is one of the best trees that 

 can be used for yard planting in sections that have twenty or more 

 inches of rainfall per year. 



English Maple. This is a medium growing tree of .medium size 

 with spreading, thick top that casts a dense shade. It is drouth 

 resistant and well adapted to shade and windbreak formation. 



Green Ashu This is a medium growing tree of medium size v.Ith 

 spreading top that casts a dense shade. It is little bothered by in- 

 sects and diseases and is hardy and drouth resistant. It is one of 

 the best shade and road side trees. 



White Ash. This is a medium growing tree of medium size, 

 with upright spreading top. It produces a less dense shade than the 

 Green Ash. It is bothered but little by insects and diseases and is 

 drouth resistant after it has been well established. It is a good 

 ishade and road side tree. 



Russian O'live. This is a small, medium growing tree. It is ex- 

 tremely drouth resistant and especially adapted to planting in light 

 rainfall sections for windbreak formation. 



Carolina PopUar. This is a medium to large tall, rapid growing 

 tree. It is very hardy and drouth resistant but inclined to be short 

 lived in light rainfall sections. It is a splendid tree for temporary 

 plantings. 



Cottonwood. This is a tall rapid growing tree that is drouth 

 resistant while young. It is short lived in light rainfall sections but 

 well adapted to temporary planting where quick results are desired. 



Silver Poplar. This is a medium to large rapid growing tree 

 with a spreading top. It is hardy and drouth resistant while young 

 and well adapted to temporary planting. 



Boxolder. This is a rapid growing tree while young. It has been 

 widely planted but is not' sufficiently drouth resistant to be satis- 

 factory for planting in light rainfall sections. 



English Oak. This is a medium growing tree of medium size, 

 with a broad spreading top. It is hardy and drouth resistant and is 

 a splendid tree for permanent planting in sections having eighteen 

 or more inches of rainfall per year. 



English Walnut. This is a a lage rapid growing tree with a 

 broad spreading top that casts a dense shade. It is especially adapted 

 to planting in the irrigated sections of the state. In some localities 

 (it is valuable for the crop of nuts it produces. 



The following varieties are often used for special purposes with 

 good results: American Elm, English Elm, Hackberry, Linden, Black 

 Walnut, Horse Chestnut, White Birch, Mountain Ash, White Willow, 

 and Golden Willow. There are also many others not mentioned here 

 that do well in special localities. 



The following varieties of .evergreen trees are worthy of more 

 general planting for ornamental and windbreak formation: Red Fir, 

 Colorado Blue Spruce, Norway Spruce, Bull Pine, Douglas Spruce,. 

 Irish Juniper, Austrian Pine and Scotch Pine. 



