26 BULLETIN 820, U. S. DEPARTMENT OF AGRICULTURE. 
for ties or lumber. In Wisconsin $5 per cord is the usual price paid 
for jack pine with bark left on delivered at the railroad. It costs 
the pulp mills about $8 per cord, delivered. 
Jack pine is used somewhat for ground wood pulp. ‘‘When com- 
bined with large proportions of sulphite jack pine ground wood pulp 
produces a satisfactory manila of a color other than white.” The 
Forest Products Laboratory is confident, from its experiments, that 
ground wood pulp from jack pine can be used in proportions well 
worth while in the manufacture of newsprint. 
One of the big problems in the pulp industry in the Lake States is 
the obtaining of a supply of woods which can be converted at a 
reasonable cost into sulphite and ground wood pulp for newsprint 
paper, and which shall be accessible to the expensive plants already 
established. If jack pine can be used, the problem will be solved to 
a large extent for many of the established plants, because of the 
large supply of this wood in sizes suitable for pulp, its prolific repro- 
duction, and its rapid growth. If the present prices for newsprint 
paper continue, methods will probably be developed which will make 
jack pine and other pines available for newsprint. 
FUEL. 
In many parts of its range, jack pine is the principal fuel, coal 
being scarce and its use limited. The estimated quantity of firewood 
used annually in the Lake States on farms alone is over 6,500,000 
cords, and of this amount jack pine forms a large percentage. In 
many towns of 2,000 population and over the annual consumption 
is 2,500 cords and upward. Many of the local light and power 
companies use this species exclusively. 
» MINE TIMBER. 
Jack pine in the round is used in considerable quantities in the 
Lake States for mine props, posts, and lagging. In northern Minne- 
sota, jack pine timbers bring $18 per 1,000 feet Scribner Decimal C 
log scale, without cull for defects of any kind, f. o. b. main-line rail- 
roads. 
POSTS AND POLES. 
Considerable jack pine is used for posts, and, in the absence of 
better species, quite a little for short poles, from 20 to 30 feet in 
length. For these purposes it is particularly serviceable if it is well 
seasoned and painted with creosote or some similar preservative. 
The untreated timber does not last well in contact with the soil. 
‘From Bulletin 348, U. S. Department of Agriculture, on “Ground Wood Pulp,” by Thickens and _ 
McNaughton. 
