File:Bulletins on forest pathology - from Bulletin U.S.D.A., Washington, D.C., 1913-1925 (1913) (19884613263).jpg

Title: (Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925)
Identifier: bulletinsonfores00unit (find matches)
Year: 1913 (1910s)
Authors: United States. Dept. of Agriculture
Subjects: Trees; Plant diseases
Publisher: (Washington : U. S. Dept. of Agriculture)
Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: University of Toronto

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
Bui. 1298, U. S. Dept. of Agriculture PLATE X
Text Appearing After Image:
Fig. 1.—New ground-wood pulp placed directly on ground. A concrete base would prevent all infection from the ground upward into the base of the pile Fig. 2.—Rotten platform recently used for ground wood. It rests directly upon moist soil, from which it became infected. If plank foundations are to be used, all decaying material should first be removed from the site, the ground surfaced with cinders, and fresh new timber used for each pile. In the long run a concrete base will be found much better and cheaper Fig. 3.—Base of a pile of hydraulic-pressed ground-wood pulp stored two years in an open shed. The light area to the right is a very rotten spot in the floor, from which the piece of pulp to the left has been turned back. The indication is clear that this particular decayed area in the pulp originated from the floor Fig. 4.—New ground-wood pulp stored on a rotten base consisting of hydraulic-pressed ground- wood pulp two years old. The floor is also completely decayed. Under no circumstances should clean pulp be placed in contact with decayed or infected material

Note About Images