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 FIGURES
Figure No.
Title
Page
3-1
Douglas-Fir, Southern Yellow Pine, Western Hemlock, and
White Fir (from left to right) are Four Major Softwood Species
(note the narrow Band of Heartwood in the Center of the Southern
3-3
Yellow Pine Sample)
White Oak, Red Oak, Sweetgum and Black Gum (from left to right)
3-2
are Four Major Hardwood Species (Note the Course Texture of the
3-4
Oaks, Especially Red Oak and the Variegated Pattern in Sweetgum)
4-1
Bacterial Damage in Sapwood Cut from Untreated White Pine (left)
4-6
and Red Pine (right) Piling Submerged for 85 Years in Freshwater
4-2
Surface Mold on Sweetgum Veneer
4-8
4-3
Sapstain in a Cross Section of Pine
4-9
4-11
4-4
Interior Oxidation or Chemical Stain of Yellow Poplar
When Wet Wood is Probed with a Pick or Comparable Tool, it Tends
4-5
to Lift Out as a Long Sliver or it Breaks by Splintering if Sound (left)
but if Decayed even Slightly it Tends to Lift in Short Lengths and to
4-12
Break Abruptly, Without Splintering (right)
Early Stage of Brown Rot Showing Discoloration on Side Grain
4-6
(top right) and End Grain (top left) of the Same Board and Across
Grain Cracking and Collapsed Wood Associated with Advanced
4-13
Brown Rot (bottom)
Discoloration from White Rot on End Grain, Characterized by
4-7
Mottling and Dark Zone Lines arrows) Bordering the Abnormally
4-14
Light-Colored Areas (top) and Side Grain of the Same Board (bottom)
4-16
Typical Surface Checking of Soft-Rotted Wood when Dry
4-8
4-17
White Pocket Rot in Douglas-Fir
4-9
4-18
Brown Pocket Rot in Western Red Cedar
4-10
4-20
Range Map for Subterranean (A) and Drywood (B) Termites
4-11
Termite Damaged Wood Showing the Insects' Preference for the
4-12
Softer Earlywood and Accumulation of Soil and/or Fecal Material
4-21
in the Galleries
4-22
Winged Subterranean Termite Swarmers
4-13
Subterranean Termite Shelter Tubes on the Interior Foundation Wall
4-14
4-24
of a Crawl Space Type House
4-25
Subterranean Termite Workers
4-15
4-26
Hazard Regions for Subterranean Termites
4-16
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