98 REPORT OF THE No. 3 



IV. Forest Investigations 

 Forest Surveys: 



Programme: The forest survey programme for 1925 included the examina- 

 tion of four areas, namely: — 



A. (1) Groundhog River Area: A tract lying south of the section of the 

 Transcontinental Railway from Kapuskasing to Fauquier and extending to the 

 Canadian National Railway, in all twenty-seven townships, being an area of 

 2,079 square miles or 1,330,560 acres. 



(2) Opasatika River Area: A tract lying north of the Transcontinentaf 

 Railway and tributary to the Opasatika River. It extends north of townships 

 Pearce, Nixon and Neely to the Missinaibi River. The area comprises 1,050 

 square miles or 672,000 acres. 



B. During October three parties investigated conditions: 



(1) Around Kabinakagami Lake, an area lying southwest of Oba in the 

 angle formed by the Algoma Central Railway and the Canadian National Rail- 

 way. This area contains 729 square miles or 466,560 acres. 



(2) The area immediately east of the Longlac pulp limit and bounded on 

 the north by the eastern arm of the Longlac limit, on the south by the Lake 

 Superior and Pic River limits, and on the east by the Nagagami pulp limit. 



Two areas were made of this tract and divided by the Canadian National 

 Railway. The northern portion was completed and the western third of the 

 southern piece. 



This whole area contains 1,561 square miles or 998,880 acres. 



Investigative Work: 



One party under the direction of Mr. J. A. Brodie carried on investigative 

 work in addition to their regular survey programme. This work was to deter- 

 mine the practicability of applying statistics to estimating and secure: 



(1) A measure of the variation in cordage existing within types. 



(2) The amount of sampling necessary for a given degree of accuracy in 

 an estimate. 



In addition to the above, work was carried on to investigate: 



(1) The accuracy of the method of estimating as adopted by the Forestry 

 Branch. 



(2) The effect in the estimate of different percentage cruises having as a 

 check an area cruised 100%. 



From May 23rd to September 26th, 46 men were employed in the survey 

 of the Groundhog and Opazatika River areas. These men were organized into 

 5 parties, 4 nine-men parties and 1 eight-men, also a chief and canoeman. 



During October eleven men were employed. 



The total area surveyed totals 5,419 sq. miles or 3,468,000 acres. At a 

 cost per sq. mile of $5.77 and cost per acre .90 cents. 



