192 FORESTRY IN CANADA. 



experimental work. Foresters in the employ of Corporations 

 have done similar work, as well as exploration, mapping, cruising, 

 surveying and research. The value of working plans has been 

 recognised by the Quebec Government, and it is hoped that they 

 will soon be introduced. 



The Canadian Forestry Association is an educational body of 

 11,000 members, founded in 1900, to promote public interest in 

 the protection and development of the forest resources, the 

 encouragement of tree planting on the prairies, and kindred 

 objects. The Association publishes monthly the Canadian 

 Forestry Journal and other educational literature bearing chiefly 

 upon forest fire protection and silvicultural questions. It em- 

 ploys lecturers who move about in many parts of the Dominion. 

 There are also numerous voluntary lecturers. 



The Canadian Society of Forest Engineers aims at instructing 

 the members in the theory and practice of forestry by discussions, 

 and it issues publications. 



6. Annual Increment and Utilization. 



No statistics are available by means of which the annual incre- 

 ment could be estimated with any degree of accuracy. The 

 increment measurements which have been made apply to such 

 small areas that the data obtained are altogether insufficient to 

 provide a basis for even a rough estimate. 



The Dominion Director of Forestry states that an attempt has 

 been made to estimate the increment of the forests in British 

 Columbia, by placing it on an average at 100 feet board measure, 

 or say 8 cubic feet, per acre and year. It is also stated that this 

 estimate, if correct, cannot be used as a basis for an estimate 

 covering the Dominion, since growth is far more vigorous in 

 British Columbia than elsewhere in Canada. Taking, by way of 

 illustration, the average increment throughout the Dominion 

 forests at 5 cubic feet per acre and year, the total annual increment 

 of the 932,416 square miles of forest would amount to about 

 3,000,000,000 cubic feet annually. On the other hand, the 

 Director of Forestry states that the loss by fire, decay, insects, 

 fungi, windfall, floods, and landslides might possibly reach 

 2,500,000,000 cubic feet annually, leaving a balance or net annual 

 increment of 500,000,000 cubic feet. 



