loS TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



Company's cut-over limits, and is very typical of cut-over pul[) 

 lands in that part of Quebec just north of the St Lawrence. 

 Once a white pine and spruce stand, it has degenerated through 

 the usual sequence of cuttings into a mixed-wood type, yellow 

 birch, balsam fir, spruce, and white birch, with the softwoods 

 mainly as an understory. 



The main object of the work here is to study, by means of 

 permanent plots, the factors influencing natural regeneration of 

 cut-over pulp lands. Experiments are being made with artificial 

 reproduction, and some study is being made of burnt-over areas. 

 It is hoped that it will be possible to establish an experimental 

 area in nearby pulp-wood operations, and thus allow of the 

 necessary extension of the studies to experimental cuttings. 



Such an experimental area was established in New Brunswick 

 in 1919, in co-operation with the New Brunswick Forest Service 

 and the Bathurst Lumber Company. The area chosen lies 

 within the range of the great Mirimachi fire of 1825, and is 

 covered by an even-aged stand of spruce, with an admixture of 

 poplar and white birch. The area was cut over in 191 9 under 

 the supervision of a forester; cutting was carried out to various 

 diameter limits, ranging from 6 to 12 inches; slash was disposed 

 of by various methods, and a number of permanent plots have 

 been established to take care of the various phases of the study. 



In addition to the survey of cut-over lands already mentioned, 

 similar surveys have been undertaken on the holdings of the 

 Riordon Company in Quebec, and of the Abitibi and Spanish 

 River Pulp Companies in Ontario. 



The importance to the pulp industry of planting up accessible 

 areas, as an alternative to relying on natural regeneration -of 

 distant cut-over lands for future pulp-wood supplies, has been 

 realised by the Laurentide Company. This Company has 

 carried out extensive experiments in connection with its general 

 planting scheme, and the data and results obtained have been 

 placed at the disposal of the Dominion Forest Service. 



2. White Pine Lands of Eastern Canada. 



The problem of securing a continuous crop has not received 

 the same attention from the lumber industry as from the pulp 

 and paper makers. However, there is no doubt that the problem 

 is of equal importance, and a start has been made to deal with 

 it. 



