134 



low and neur them. A top elevated 

 tvventj-five feet from the ground, will not 

 do half so much damage as another of 

 the same extent, that is only elevated 

 ten; and supposing the elevation the 

 same, a top, properly formed by atten- 

 tion, would not occupy more than half 

 the space, or be near so close as one 

 left to form itself. A tree, extending 

 five yards each way, only occupies about 

 lialf the space of one that extends 

 seven. Indeed, taking the circum- 

 stances of elevation and extension toge- 

 ther, the difference between a good and 

 a bad form, will, in regard to produce be- 

 low them, be much the same as one to 

 four. 



Again. In hedge-rows, dividing fields, 

 where grain, &c. is cultivated, the mat- 

 ter is of still worse consequence ; as there 

 the shade alone, beyond the limits of the 

 drip, frequently does more harm than the 

 drip itself. Shade prevents the grain 



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