but either early in the morning or late in the afternoon or evening. 

 The reason for this is obvious : to prevent too hasty evaporation the 

 watering should be done "in the cool of the dav." 









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Spraying Outfit. 



NOT ONLY WATER, BUT AIR 



Just above, we spoke of the leaves as the lungs of the tree; but 

 don't let the analogy mislead you. For "the life-sustaining air" 

 must also be taken in at the roots as well. Mind that. Unless the 

 roots get their quantum of air (and of water too), the tree will not 

 thrive — nay, will peak and pine and die. Oh, we want you to be 

 impressed with the importance of this. If you will let that impres- 



12 



