Pamphlets on Forestry, Volume 121991 |
From inside the book
Results 1-3 of 84
Page 12
... carried on in accordance with the working plan , which can not be departed from without the concurrence of the approving officer . This plan of control applies only to the more important lines of investigation which are to be conducted ...
... carried on in accordance with the working plan , which can not be departed from without the concurrence of the approving officer . This plan of control applies only to the more important lines of investigation which are to be conducted ...
Page 41
... carried on by forest officers . Specimens of injurious insects , together with specimens of their work , are collected and forwarded for identification to the Bureau . of Entomology . Habits and detrimental or beneficial effects of wild ...
... carried on by forest officers . Specimens of injurious insects , together with specimens of their work , are collected and forwarded for identification to the Bureau . of Entomology . Habits and detrimental or beneficial effects of wild ...
Page 270
... carried on generally in small plantations , the time has come when men of means can get large returns from the development of plantations on extended areas . There are reasons for believing that the work can be carried on more ...
... carried on generally in small plantations , the time has come when men of means can get large returns from the development of plantations on extended areas . There are reasons for believing that the work can be carried on more ...
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