show encouraging results and this may finally lead to a displacement of the 

 scaling method in favor of estimating. 



FORESTRY 



In the following pages, research in forestry is reported under the 

 headings of Site, Tree Breeding, Reforestation, Regional Forest Research, R.C.-17, 

 and White Pine Blister Rust Reconnaissance Surveys. Regional Forest Research is 

 reported under the headings of the silvicultural field research units established 

 at Port Arthur, Cochrane, Sault Ste. Marie, Dorset, Maple, and Tweed. 



The whole forest research program has the objective of discovering 

 improved principles, practices and techniques for management. 



SITE RESEARCH 



The site research program is centered around regional investigations. 

 When this work began in 1944 the objectives stated in the directive may be summar- 

 ized briefly as follows: 



(i) To provide land class maps on a scale which will give 



a general statement of land conditions in the district, 

 (ii) To develop techniques of using aerial photographs for 



mapping land quality, 

 (iii) To obtain data which will form the basis from which to 



determine a land-use policy in the district. 

 The aim of development of the research aspect of this program has been 

 to devise methods of classifying, mapping and describing land in such a way that 

 its potential for the management of the renewable natural resources may be 

 utilized as fully as possible under the social and economic conditions existing in 

 the region. The program is organized to include not only an integrated classifi- 

 cation of landform and soil features of a region but to establish relationships 



17 



