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removed the remaining trees have become crippled and have had their 

 oiMwn symmetry impaired. Parts of the crowns have been suppressed 

 and the trees cannot recover even when the interfering trees are removed. 

 Therefore, the safest thing to do is to space properly in the beginning. 

 The distance apart will vary for different species and for the same 

 species in different soils and climates. In East Texas and in rich bot- 

 tom lands the trees will need ten to fifteen feet more room than in dry 

 situations with poor soils. Trees suited to narrow streets should be spaced 

 about thirty feet apart, those for medium width streets forty feet -and 

 those adapted to wide streets will need fifty or more feet of space when 

 they are mature. Normally trees are planted abreast on opposite sides 

 of a street, but where wide spreading trees are planted along narrow 

 streets it may be advisable to alternate them. On lawns, trees are best 

 planted informally in groups rather than in rows. 



In no case should trees be placed at the corner of intersecting streets, 

 since in such locations they are especially liable to injury by pedestrians 

 or by teams and automobiles if there are no curbings. Furthermore, 

 who ii the trees are young they will obstruct the view of vehicles and 

 interfere with traffic. 



Trees should be uniformly spaced in regular rows for 'Symmetrical 

 results. They should be so placed that they will not interfere with wires, 

 otherwise they will be mutilated by linemen, or to avoid this it will be 

 necessary to cut the tops back below the wire. 



On lawns and private grounds a row of trees or a group may be needed 

 to screen an outbuilding or to give a sense of privacy to the home. In 

 general, there will be no formal planting in rows or along geometrical 

 lines. Informal grouping to simulate the natural occurrence of trees in 

 parks should be done. 



Trees in cities are living under unnatural conditions. A deficiency 

 in moisture and sun light, combined with excessive smoke and dust, 

 make it imperative that the soil conditions be as favorable as possible. 

 A hole four feet square arid three feet deep should be dug. Ordinarily 

 sterile subsoil is thrown up to form parkings when streets are built. 

 Therefore good top soil should be secured to fill in with. If the park- 

 ing space is narrow or the rainfall insufficient, pipes or tiles should be 

 secured for sub-irrigating. 



The best time for planting trees is between November and March. 

 It is merely necessary that the tree be dormant and the ground un- 

 frozen. February is the planting month for the whole state and the 

 date for Arbor Day has been well chosen February 22. Ideal condi- 

 tions prevail when the day is cool and cloudy right after a rain while 

 the ground is moist. The feeding roots are very tender, being easily 

 dried out and killed, especially the roots of evergreens. In order to 

 avoid this, roots ought to be "puddled" ; that is, they should be coated 

 with thick mud before being taken to the planting site. They should be 

 kept covered and protected from sun and wind as much as possible, since 

 an exposure of five minutes is fatal to pine seedlings, and other trees 

 will stand very little more. 



After all preparations for planting have been made a cone of earth 

 should be piled in the middle of the hole and the tree set down so that 

 it will be as deep in its new situation as it was before transplanting. 

 The roots should then be spread out in a more or less natural position 



