INCREMENT AND UTILIZATION. 



53 



yield in the future. Unfortunately, the information supplied by 

 the several parts of the Empire consists — a few cases excepted — 

 of mere rough estimates, and in some cases not even of that. 

 Picking out the countries for which an estimate has been given, 

 the results are as follows : — 



Increment on Aeeas under State Control (except those 

 IN THE United Kingdom). 



These data show that the average net increment on 514,700 square 

 miles of forests amounts roughly to 7 cubic feet per acre a year. 

 It is, however, impossible to say whether the same ratio applies 

 to the rest of the forests. At the same time there is no doubt that 

 under proper treatment the increment can be raised to several 

 times the present amount. 



The data given of the Utilization, although fairly accurate in 

 some cases, are also unsatisfactory, because some of them are 

 pre-war and others post-war figures ; also in some cases only 

 timber is given, while in others firewood is included. Such as they 

 are, the data are as follows : — 



The figures would indicate that the annual utilization amounts 

 to only 36 per cent, of the increment. 



