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File:Report on the relation of railroads to forest supplies and forestry - together with appendices on the structure of some timber ties, their behavior, and the cause of their decay in the road bed, on (14755970324).jpg

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English:

Identifier: reportonrelation01fern (find matches)
Title: Report on the relation of railroads to forest supplies and forestry : together with appendices on the structure of some timber ties, their behavior, and the cause of their decay in the road bed, on wood preservation, on metal ties, and on the use of spark arresters
Year: 1887 (1880s)
Authors: Fernow, B. E. (Bernhard Eduard), 1851-1923
Subjects: Forests and forestry Wood Preservation Railroads Ties
Publisher: Washington, D.C. : Dept. of Agriculture, Forestry Division
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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Text Appearing Before Image:
Report of Forestry Division, Department of Agriculture.
Text Appearing After Image:
Photomicrograph by P. H. Dudley. Bell Bros., Washington, D. C. 380. Pinus Palustris, Miller ; Long leaf Pine. Transverse Section x 100 Diameters. 45 Long leaved k Xellow Pine, Pinuspalustris, Mill. No. 3S0. The striking appearance of the structure of (Ins wood, as seen in thetransverse section, consists in the si rongly marked zones of differenl cellsin each layer of growth. At the present time satisfactory distinctivenames have not been given to these two Glasses of wood-cells or tracheitis.I shall use (he term thin - and t hick-walled tracheids to distinguish them.The former grow in the first part of the season, and the latter during thesummer; but the line of demarkation between tliem is sharp, not beinga gradual mergiug as in most of the other Conifers. In some trees, eachlayer is made up of about equal portions of the thin- and thick-walled tra-cheids, though these layers may vary in thickness from one-thirty-secondto one-fourth of an inch; in other trees, the layer of th

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Date
Source https://www.flickr.com/photos/internetarchivebookimages/14755970324/
Author Fernow, B. E. (Bernhard Eduard), 1851-1923
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Flickr tags
  • bookid:reportonrelation01fern
  • bookyear:1887
  • bookdecade:1880
  • bookcentury:1800
  • bookauthor:Fernow__B__E___Bernhard_Eduard___1851_1923
  • booksubject:Forests_and_forestry
  • booksubject:Wood_Preservation
  • booksubject:Railroads_Ties
  • bookpublisher:Washington__D_C____Dept__of_Agriculture__Forestry_Division
  • bookcontributor:U_S__Department_of_Agriculture__National_Agricultural_Library
  • booksponsor:U_S__Department_of_Agriculture__National_Agricultural_Library
  • bookleafnumber:71
  • bookcollection:biodiversity
  • bookcollection:usda-bulletinforestservice
  • bookcollection:usdanationalagriculturallibrary
  • bookcollection:fedlink
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
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current06:09, 18 October 2015Thumbnail for version as of 06:09, 18 October 20152,536 × 3,732 (1.51 MB)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Identifier''': reportonrelation01fern ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Freportonrelation01fern%2F fin...
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