SITUATIONS. 9 



The propriety of this method will appear 

 manifest, when it is considered, that the gust 

 or current of wind is generally much stronger 

 on the summit than on any other part of the 

 mountain. When two mountains, or steeps, 

 nearly approach each other, and form a hol- 

 low or dell between them, the wind, in that 

 case, passes as if through a funnel, and per- 

 haps with greater force than over the sum*- 

 mit. If there is a choice, occasioned by the 

 wind continuing to blow more one way than 

 another, that part of the zone most opposed 

 should be first planted. 



If the zone shall be so extended that it 

 cannot be all planted in one, or even in two 

 or three seasons, so much the better for the 

 purpose; for it would be imprudent to begin 

 with the second zone till the trees of the first 

 were a few years in the ground, and begin- 

 ning to afford shelter to those of the next. 

 Being divided in length, and part being 

 planted year by year, answers a two-fold pur- 

 pose > as the trees are rising in succession to 

 one another in all directions. The breadth 

 of the zones, in this case, should not be 

 less than a hundred yards; but they may be 



