DEPARTMENT OF LANDS AND F^ORESTS FOR 1948 69 



A similar stud\- under the general direction of A. P. Leslie and field direction 

 of D. H. Burton was made in the clay belt area adjacent to Lake Abitibi. 



An opportunit>" was presented here to re-examine some 43 plots established 

 during 1925 following various t\pes of logging. The report of the survey has 

 been completed and issued as Report No. 16. 



A stud\' of Red pine seeding habits under Dr. George Duff was continued 

 this year. 



Tree breeding under Dr. C. C. Heimburger is concerned with the pro- 

 duction of a rapid-growing hybrid aspen of good color and pulping qualities 

 and resistant to disease. 



During the >'ear, over one thousand acres of burned forest land in Sault 

 Ste. Marie and the Tweed and Parry Sound districts were seeded from the air, 

 under the direction of A. P. Leslie, using seed coated with fertilizers, rodent 

 repellents, fungicides, etc. This was a follow-up of work started in 1946. 



Slash on about 400 acres of cut-over land on Shiningwood Ba>-, Lake 

 Timagami, was piled and burned, and broadcast burned after October 1, 1947. 

 Prices of $1.00 per thousand for broadcast burning and $6.00 per thousand for 

 complete cleaning of an area carrying a stand of 15 thousand per acre were 

 established. 



2. — Growth II nd Yield Studies 



This survey was under the direction of M. A. Ardenne and has pro\-ided 

 an assessment of growth conditions on white and red pine in the Ottawa \'alle>'. 



3. — Soil Surveys 



The soil surve\s, directed In Mr. (i. A. Hills, aiming at a preliminar\- classi- 

 fication and separation of agricultural and forest lands started during 1944, 

 were continued b\' the Division. 



4. — Fisheries Investigations 



Fisheries studies under Dr. V . li. J. Fry of the University of Toronto were 

 e.xpanded in 1947 b\- the initiation of the South Bay experiment. This project 

 has been organized in co-oj)eration with the F'ederation of Commercial Fishermen. 

 The anticipated duration of the test will ajjproximate five to ten years. I-^ield 

 laboratories and working space are practicalK completed at .South I?a\ 

 Mouth. 



The other fisheries ])rojects can onl\' be listed here witli brief conunents 

 on each. 



