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air, our treee must be heeded higher. How to induce this, is a problem for our 

 nurserymen and we muet demand good materials from him and be willing to pay for 

 the extra care that they must have. 



Another case which demands special nursery care is that of the Texas 

 Unmrella Tree. It is urged that this tree be abandoned for street work but it 

 offers such a good example that it is used here merely to illustrate the point in 

 hand. If left to its own devices the tree branches a foot or so from the ground 

 level and produces a multitude of coordinate branches which produce a great 

 thickening which is easily broken in wind or rain storms. The problem is this. 

 Can branching be induced efter a better leader has been formed and can the young 

 tree be pruned so that fewer branches are allowed to develop and hence a safer 

 stronger crotch be formed? 



A somewhat similar problem is confronted in the case of the Carob Tree 

 (Ceratonia_ siliqua). As was shown in Fig. the tendency of the tree ie to 

 form several leaders which develop horizontally and after developing great thickness 

 eplit off breaking with them much of the main trunk. This problem is more 

 difficult to solve and it ie not, as yet, assured that it can be overcome. 



And so examples might be multiplied without number. The point of the matter 

 is this; use only first class nursery stock and expect to pay for it. Examine 

 your trees; see that they are healthy and free from insect pests; see that they 

 have developed normally and are not trees which have made the best of bed condi- 

 tions; see that they have grown vigorously and have never been stunted or root 

 bound. Then give them a place to grow which gives them every opportunity for an 

 optimum development, and then do not sit down and await results but give them con- 

 stant care, for one cannot expect reasonable development with no care at all. 



To all this, there will probably be raised the objection of expense. Most 

 assuredly there will be some extra expense, but these matters need not take much 

 more work than in ordinary nursery practice and it is to the advantage of the 



