56 BULLETIN 1485, U. S. DEPAETMENT OF AGEICULTITKE 
Texas (Nueces River, San Augustine County); in Alabama, extending to Macon 
and Dallas Counties, and also to Sand and Lookout Mountains, in Mississippi, 
to the northeast corner of the State, and in western Louisiana, to Winn and 
Natchitoches Parishes. 
Oven-dry weight -per cubic foot, green volume. — 29 pounds. 
Fiber length. — 1.3 mm. 
By Sulphite Process 
Reduces readily. 
Unbleached pulp: Of poor color; easily bleached. 
Yields: 40 to 45 per cent. 
Bleach required: 10 to 15 per cent. 
By Soda Process 
Reduces readily. 
Unbleached pulp: Rather difficult to bleach. 
Yields : 35 to 40 per cent. 
Bleach required: 25 to 30 per cent. 16 
By Mechanical Process 
Behavior probably similar to that of black gum. 
Sycamore (Platanus occidentalis) 
Other names in use. — Button-wood, buttonball-tree, and plane-tree. 
Range. — Southwestern Maine to northern Vermont, southern Ontario and 
Michigan, central and southern Iowa, southeastern Nebraska, eastern Kansas, 
Oklahoma, and southwestern Arkansas, south to western Florida, central Alabama, 
and Mississippi, to western Texas. 
Oven-dry weight per cubic foot, green volume. — 29 pounds. 
Fiber length. — 1.7 mm. 
By Sulphite Process 
Reduces readily. 
Unbleached pulp: Easily to bleach. 
Yields: 45 to 50 per cent. 
Bleach required: 10 to 15 per cent. 
By Soda Process 
Reduces readily. 17 
Unbleached pulp: Fairly easy to bleach. 
Yields: 45 to 50 per cent. 
Bleach required: 15 to 20 per cent. 
By Mechanical Process 
Not determined. 
Butternut (Juglans cinerea) 
Other names in use. — White walnut and oil nut. 
Range. — Southern New Brunswick to Delaware and in the Appalachian 
Mountains to Georgia and Alabama, westward through Ontario to eastern South 
Dakota, eastern Iowa, southeastern Nebraska, central Kansas, southern Mis- 
souri, and northern Arkansas. 
Oven-dry weight per cubic foot, green volume. — 22 pounds. 
Fiber length. — 1.2 mm. 
By Sulphite Process 
Reduces readily. 
Unbleached pulp: Of poor color; fairly easily bleached. 
Yields: 45 to 50 per cent. 
Bleach required: 15 to 20 per cent. 
By Soda Process 
Reduces readily. 
Unbleached pulp: Very difficult to bleach. 
Yields: 45 to 50 per cent. 
16 20 to 25 per cent when cooked by sulphate process to yields stated. 
17 The wood is difficult to chip if it is allowed to dry out, presumably on account of the numerous and 
broad medullary rays. 
