24 



BULLETIN 820, V, S. DEPAKTMENT OF AGRICULTTJKE. 



Untreated jack pine ties last from 6 to 8 years because they ae 

 cut from comparatively old trees that have a large proportion o^. 

 durable heartwood. An increasing proportion of jack pine ties, 

 however, is being creosoted, and these treated ties last from 15 to 20 

 years if they are not sooner rendered unusable by frequent spiking. 



LUMBER AND SLACK COOPERAGE. 



The chief use for the larger j ack pine trees in the Lake States is for 

 lumber. Where jack pine occurs either with Norway or white pine 

 it is always cut with these species just as it comes. The larger and 

 better trees are utilized chiefly for construction material, boards, 

 siding, and box and slack cooperage material. 



In Minnesota ^ most of the big mills cut at least a small quantity 

 of jack pine. Perhaps 200 small mills cut jack pine, and in some 

 cases nothing else, for use as box lumber and grain door boards. The 

 annual cut is perhaps 200 million feet, and the cost of logs at the 

 mills, from $7 to $9 per 1,000 board feet. 



In Wisconsin ^ aU mills, from the smallest to the largest, cut jack 

 pine. It would be very difficult to get a figure on the amount cut by 

 large mills, and impossible to get any estimate on the amount cut by 

 the small mills, because in many instances the good jack pine goes in 

 with Norway pine lumber. 



The cost of jack pine at a sawmill varies from $10 to |15 per 1,000 

 board feet, depending on the location, business conditions, and size 

 of the timber. In 1917, No. 3 and better jack pine lumber sold for 

 $20 per 1,000 f. o. b. Duluth, Minn. 



In Canada jack pine comprises about 1 per cent of the total annual 

 lumber cut. Table 14 shows the cut of jack pine and the f. o. b. mill 

 value of the lumber in the different provinces for the years 1913 and 

 1914. 



Table 14 — Lumber cut andf. o. b. mill value of jack pine in Canada.^ 



Province. 



No. of 

 active 

 mills 

 report- 

 ing. 



Quantity. 



Average value per 

 Mfeet b. m. 





1913 



1914 



1913 



1914 



Total all provinces 



497 



if ft b. m. 

 35, 404 



Mft. 6. m. 

 44,000 



Dollars. 

 14.37 



Dollars. 

 14.23 







Ontario . 



47 



400 



10 



■22 



2 



8 



4 



3 



1 



24, 297 



1,160 



4,306 



2,237 



358 



2,783 



206 



51 



6 



17, 890 



13, 727 



7,041 



4,488 



400 



201 



146 



105 



2 



14.51 

 16.00 

 14.29 

 15.83 

 13.64 

 11.71 

 12.00 

 16.20 

 12.50 



15.00 





14.00 



British Columbia 



12.51 



Alberta . 



14.58 





14.06 





14.05 



Saskatchewan 



12.00 





14.95 



Prince Edward Island 



20.00 







1 Letter from State Forester Cox, of Minnesota, July 17, 1916. 



2 Letter from State Forester Moody, of Wisconsin, July 31, 1916. 



3 From Bulletin 56 of the Canadian Forestry Branch. 



