4^2 



REPORT OF THE FOREST, FISH AND GAME COMMISSION. 



The total future yield of spruce to be expected from the merchantable area 

 in Townships 5, 6 and 41 in from ten to fifty years after cutting to ten, twelve 

 or fourteen inches is given in the following table: 



TABLE XXXII.— ESTIMATE OF TOTAL FUTURE YIELD OF SPRUCE ON MER- 

 CHANTABLE AREA IN TOWNSHIPS 5, 6 AND 41. 

 Township 5. 



•Cutting- limit: 



Total 



Total Yield Obtainable at the End of 



io-Year Periods in Standards. 



Intervals 



diameter 



present 













required 



breasthigh. 



yield. 



10 



20 



30 



40 



5° 



between 

 equal cuts. 



Inches. 



Standards. 













Years. 



10 



395,853-59 



46,315.80 



97,091.64 



201,044.88 



331,929.90 



449,091.72 



46 



12 



321,742.89 



46,658.88 



143,064.36 



259,883.10 



419,072.22 



672, 265 . 26 



34 



T 4 



263,456.29 



43,5/I-l6 



194,354.82 



338,791.50 



568', 312.02 



766,955.34 



25 



10 



12 

 14 



544,486.54 

 450,612.99 

 352,129.40 



54,081.72 

 59,232.36 

 60,949.24 



130 

 177 

 263 



Township 6. 

 697.49 

 911.69 



541.08 



Township 41. 



251 



308 



31 



316 



335 



14 



447 



891 



07 



368,270.76 

 539,100.32 

 686,108.17 



531 



.374 



76 



837,837 



44 



1,009 



310 



83 



51 



36 



25 



10 



642,810.18 



48,455-96 



Il8.955.4i 



245,655-83 



402,939.11 



542,945.06 



56 



12 



547,802.31 



59,179.82 



178,731.00 



307,020.14 



5l8,9I5-67 



832, 29O . 69 



41 



14 



449,892.61 



66,924.83 



275,245.74 



465,494-96 



693,079.10 



1,003,276.68 



29 



Species Recommended 'to be Lumbered. 



While figures of present yield have been given for five species, it is advised- 

 that at present only the spruce, balsam, and white pine be logged on Townships 

 5, 6 and 41. 



Proposed Diameter Limit. 



The proper diameter limit breasthigh which should be used can only be 

 ■determined after taking into consideration several factors. A sufficient number 

 of seed trees must be left in order to insure the reproduction of the valuable 

 species, and the cutting must not be too severe, or the period in which an equal 

 cut may be expected will be too long. On the other hand, the diameter limit 

 must not be made too high or the lumberman can not get enough timber to pay 

 for the logging. 



Tables are given showing the present and future yield of spruce with diameter 

 limits of ten, twelve and fourteen inches. A careful study of these has led to 



