APPEARANCE OF WOOD: Color, rich brown, sap-wood, thin, lighter; ring-porous; rings, marked by 1 to 3 rows of small open ducts; grain, crooked; rays, broad, and conspicuous. PHYSICAL QUALITIES: Heavy (9th in this list); 46 lbs. per cu. ft.; sp. gr., 0.7453; very strong (16th in this list); elastic (37th in this list); hard (9th in this list); shrinkage, 4 per cent. or more; warps, ..........; hard, and tough to work; splits easily, resists nailing. COMMON USES: Ship building, cabinet work, railway ties, cooperage. REMARKS: Good for prairie planting. One of the most valuable woods of North America. Not distinguished from White Oak in commerce. [Illustration: Radial Section, life size.] [Illustration: Cross-section, magnified 37-1/2 diameters.] [Illustration: Tangential Section, life size.] 45 WHITE OAK (Western). _Quercus garryana_ Douglas. _Quercus_, the classical Latin name; _garryana_, named for Garry. [Illustration: Habitat.] HABITAT: (See map); best in western Washington and Oregon. [Illustration: Leaf.] CHARACTERISTICS OF THE TREE: Height, 60'-70', even 100'; diameter, 2'-3'; branches, spreading; bark, light brown, shallow fissures, broad ridges; leaves, coarsely pinnatified, lobed; fruit, large acorns. APPEARANCE OF WOOD: Color, light brown, sap-wood whitish; ring-porous; rings, marked by 1 to 3 rows of open ducts; grain, close, crooked; rays, varying greatly in width, often conspicuous. PHYSICAL QUALITIES: Heavy (10th in this list); 46 lbs. per cu. ft.; sp. gr., 0.7449; strong (28th in this list); elasticity medium (54th in this list); hard (8th in this list); shrinkage, 5 or 6 per cent.; warps, unless carefully seasoned; durable; hard to work, very tough; splits badly in nailing. COMMON USES: Ship building, vehicles, furniture, interior finish. REMARKS: Best of Pacific oaks. Shrubby at high elevations. [Illustration: Radial Section, life size.] [Illustration: Cross-section, magnified 37-1/2 diameters.] [Illustration: Tangential Section, life size.] 46 POST OAK. _Quercus stellata_ Wangenheim. _Quercus minor_ (Marsh) Sargent. _Quercus obtusiloba_ Michaux. _Quercus_, the classical Latin name; _stellata_, refers to the stellate hairs on upper side of leaf; _minor_, refers to size of tree, which is often shrubby; _obtusiloba_, refers to the blunt lobes of leaves. [Illustration: Habitat.] HABITAT: (See map); best in Mississippi basin. [Illustration: Leaf.] CHARACTERISTICS OF THE TREE: Height, 50'-75', even 100'; but often a shrub; diameter, 2'-3'; branches, spreading into dense round-topped head; bark, red or brown, deep, vertical, almost continuous, fissures and broad ridges, looks corrugated; leaves, in large tufts at ends of branchlets; acorns, small, sessile. APPEARANCE OF WOOD: Color, brown, thick, sap-wood, lighter; ring-porous; rings, 1 to 3 rows of not large open ducts; grain, crooked; rays, numerous, conspicuous.