Pamphlets on Forestry, Volume 121991 |
From inside the book
Results 1-3 of 78
Page 82
... trees , and burning over the cutting area is practically the only way of getting a good reproduction of Douglas fir ... trees are marked for re- moval , while all sound and thrifty trees , which , though merchantable and mature now ...
... trees , and burning over the cutting area is practically the only way of getting a good reproduction of Douglas fir ... trees are marked for re- moval , while all sound and thrifty trees , which , though merchantable and mature now ...
Page 82
... trees , and burning over the cutting area is practically the only way of getting a good reproduction of Douglas fir ... trees are marked for removal , while all sound and thrifty trees , which , though merchantable and mature now , will ...
... trees , and burning over the cutting area is practically the only way of getting a good reproduction of Douglas fir ... trees are marked for removal , while all sound and thrifty trees , which , though merchantable and mature now , will ...
Page 288
... trees are actually infested at the beginning of winter , and to see that these are cut and the bark burned before the middle of the following May . If the greater ... TREES . Different kinds. INSECT INJURIES TO HARDWOOD FOREST TREES . 317.
... trees are actually infested at the beginning of winter , and to see that these are cut and the bark burned before the middle of the following May . If the greater ... TREES . Different kinds. INSECT INJURIES TO HARDWOOD FOREST TREES . 317.
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