800 DETER^riXATTON AND RErxFLATTON OF THE YIELD. 



area to be dealt with. In the above case the area might be 

 given as 200 to 300 acres, or 225 to 275 acres. 



As long as the total area determined under (1.) to (3.) falls 

 between these limits, it may be accepted as the area to be 

 dealt with during the first 10 years. If it is larger than the 

 maximum, then some of the most suitable areas enumerated 

 under (3.) should be held over until the second period of 

 10 years ; if smaller than the minimum, then possibly some 

 further woods may be found, which could be added to those 

 already placed under (3.). In extreme cases, the yield may 

 be kept for a number of years below the proper minimum. 



Example. — Let the age classes in the above example be as 

 follows : — 



Total = 2,000 2,000 



As there is a considerable excess of old woods, the area to be 

 cut, or taken under regeneration, every 10 years should be 



more than ^— — = 250 acres. Indeed, for the next 20 years, 



H 



up to 300 acres might be cut during every 10 years. The 

 result would be as follows : — 



