Part 10 (1/2)

APPEARANCE OF WOOD: Color, pinkish brown, sap-wood, cream white; non-porous; rings, distinct; grain, straight; rays, numerous, obscure; resin ducts, numerous, large and conspicuous.

PHYSICAL QUALITIES: Weight, very light (61st in this list); 22 lbs.

per cu. ft.; sp. gr. 0.3684; strength, weak (59th in this list); elasticity, medium (56th in this list); soft (53d in this list); shrinkage, 3 per cent.; warps little; durable; easily worked; splits little, nails well.

COMMON USES: Carpentry, interior finish, doors, blinds, s.h.i.+ngles, barrels, etc.

REMARKS: Exudes a sweet substance from heart-wood. A magnificent and important lumber tree on Pacific coast.

[Ill.u.s.tration: Radial Section, life size.]

[Ill.u.s.tration: Cross-section, magnified 37-1/2 diameters.]

[Ill.u.s.tration: Tangential Section, life size.]

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NORWAY PINE. RED PINE.

Red refers to color of bark.

_Pinus resinosa_ Solander.

_Pinus_, the cla.s.sical Latin name; _resinosa_ refers to very resinous wood.

[Ill.u.s.tration: Habitat.]

HABITAT: (See map); grows best in northern Michigan, Wisconsin, and Minnesota.

[Ill.u.s.tration: Leaf.]

CHARACTERISTICS OF THE TREE: Height, 70'-90'; diameter, 2'-3'; tall, straight; branches in whorls, low; bark, thin, scaly, purplish and reddish-brown; longitudinal furrows, broad flat ridges; leaves, in twos in long sheaths; cones, 2”.

APPEARANCE OF WOOD: Color of wood, pale red, sap-wood, wide, whitish; non-porous; rings summer wood broad, dark; grain, straight; rays, numerous, p.r.o.nounced, thin; very resinous, but ducts small and few.

PHYSICAL QUALITIES: Weight, light, (43d in this list); 31 lbs. per cu.

ft.; sp. gr. 0.4854; strong (39th in this list); elastic (16th in this list); soft (48th in this list); shrinkage, 3 per cent.; warps moderately; not durable; easy to work; splits readily, nails well.

COMMON USES: Piles, electric wire poles, masts, flooring.

REMARKS: Often sold with and as white pine. Resembles Scotch pine (_Pinus sylvestris_). Bark used to some extent for tanning. Grows in open groves.

[Ill.u.s.tration: Radial Section, life size.]

[Ill.u.s.tration: Cross-section, magnified 37-1/2 diameters.]

[Ill.u.s.tration: Tangential Section, life size.]

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