Pamphlets on Forestry, Volume 121991 |
From inside the book
Results 1-3 of 88
Page 48
... wood - preserving plants on the strength of wood . Relative efficiency of vari- ous wood preservatives . To determine the comparative strength and stiffness of various species which are not now used extensively for poles , but which are ...
... wood - preserving plants on the strength of wood . Relative efficiency of vari- ous wood preservatives . To determine the comparative strength and stiffness of various species which are not now used extensively for poles , but which are ...
Page 68
... wood , this kind of failure does not occur to any great extent in these woods . It is seen best in the hard pines , where the thick - walled late - wood fibers form very regular curves , and the region of failure has distinct limits ...
... wood , this kind of failure does not occur to any great extent in these woods . It is seen best in the hard pines , where the thick - walled late - wood fibers form very regular curves , and the region of failure has distinct limits ...
Page 68
... wood per cord . Let x = pounds of wood per cord . For coal : abx c = 2,000 1 For oil : C = abx 338 2 This formula is based on the heat the fuel is capable of producing and does not take into account the difference in the cost of ...
... wood per cord . Let x = pounds of wood per cord . For coal : abx c = 2,000 1 For oil : C = abx 338 2 This formula is based on the heat the fuel is capable of producing and does not take into account the difference in the cost of ...
Contents
Object of the publication | 9 |
Description of the different lines of investigationContinued | 12 |
Wood distillation | 25 |
78 other sections not shown
Common terms and phrases
acres amount annual appraisals average bark brush burning capital cent cooperation cost cover creosote crop Department of Agriculture depreciation determine diameter district Division of Forestry Douglas fir effect Engelmann spruce equipment Experiment Station farm farmers fibers fixed investments forage forest land forest reserves Forest Service Fort Bayard furnish germination grade grazing ground growth important improvements inches investigations investment loblolly pine lodgepole pine longleaf pine lookout lumber material ment methods miles mill moisture mountain National Forests operation owners patrol piling plantations planting poles practical present profit protection railroad range rangers red spruce region reproduction season secure seedlings sheep silvicultural slope soil sowing spark arresters species spring spruce streams studies stumpage sugar pine supply Telephone Company thousand feet timber tion trail trees warden white fir white pine wood lot yellow pine