150 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



declared that the results from the American seed were as good, 

 and in some cases distinctly better than from home seed. 

 There were no reports of fungal diseases on the young 

 plants ; but in one instance the seed-boring grub of Megastigmus 

 spermotrophus was found, though from the results obtained it 

 would seem that little damage has been done. The most 

 serious enemy appears to have been the late spring frost, 

 which is reported to have done considerable damage to 

 seedlings and transplants in most districts. The returns showed 

 an estimate of well over 100,000 plants available, and allowing 

 for a moderate addition for those who did not report, it is 

 probably safe to say that about 150,000 young trees will thus 

 have been made available for restocking our war-felled areas. 



R. A. G. 



Forest Production in Canada for 1922. 



We have received from the High Commissioner for Canada 

 in London an estimate of the total forest production in Canada 

 during the calendar year 1922. This estimate, prepared by the 

 Dominion Bureau of Statistics, Ottawa, includes all unmanu- 

 factured material cut in Canada's forests, and is the first attempt 

 that has been made to estimate in detail the rate at which the 

 forests are being exploited. ^ 



Saw logs for domestic use head the list as far as total value is 

 concerned with over fifty-five million dollars worth of material 

 produced. Pulpwood for domestic use comes second with a 

 total value exceeding forty million dollars. Firewood with 

 thirty-eight million, railway ties with thirteen million, and 

 pulpwood for export with over ten million dollars are among 

 the more important items. The total estimated value of all 

 primary forest products is $170,850,096. 



As these products are measured by different units, the total 

 quantity can only be estimated by referring them to a common 

 measurement. In each case a converting factor is used which 

 represents, in cubic feet, the quantity of standing timber required 

 to produce the material in question. In this way it has been 

 estimated that the total output of these products in 1922 

 represented an equivalent volume of 2,377,845,182 cubic feet 



^ The Report of the Royal Commission on Pulpwood, Canada, Ottawa, 

 1924, contains very full information on this subject, — Hon. Ed. 



