122 



THE MANAGEMENT OF WOODLANDS. 



It should' also be noted that as the W. wind is supposed in this case 

 to be the most dangerous, and then the N.W., each compartment in which 

 falls are being made will have, for the young crops planted there, the 

 protection of maturing woods for the next 40 years on the W. side, and 

 of older woods for the next 20 years on the N. W. side. 



In Fig. 30, a Scots Pine Conifer working-circle on a level sandy tract is 

 shown, divided into 25 compartments, and worked with a rotation of 100 

 years divided into V. 20 -year periods, the 20 Annual Falls throughout 

 period I. being so distributed that there an interval of 5 years occurs 

 between any two consecutive falls in any; compartment* thus, giving the 

 greatest possible protection against wind.) insects, and, other dangers. 



' Fig. 30. Vi t- : > '. f !j }:. |K:I*J ;; .... 



Most dangerous wind, W. ; next dangerous wind) N.W.; > . ; 

 Periods I., II., III., &c. Compartments or annual falls, 1, 2,. 3, &c.. . 

 A, B, C,, D are the drives, or broad green lanes, or else roadways. 

 a, b, c, d are the narrow rides. 

 b c d 



Severances are protective falls made when it can be seen 

 long beforehand that a felling-series may have to begin at some 

 place where the first clearance will leave the growing crop on 

 the- leeward side unduly exposed to danger from wind. To 

 Strengthen this windward edge that will then be exposed, a 

 severance is made; by clearing a strip of about 22 yards broad 

 j(l chain) along fehe, edge of the crop that will come to the fall, 

 and replanting this strip, so that, when clearance and exposure 



