Select structural material, its characteristics and uses : manufactured from genuine long leaf pine (Pinus palustris) (1915)
Great Southern Lumber Company · Bogalusa : Great Sothern Lumber Company · leaf 27
25 HOW TO MEASURE PITH AND SECOND ANNUAL RING … The pith of the pines can be readily recognized as a small, darker and softer core in the struc-tural center of the stem. The second annual ring is clearly defined by a distinct darker line (seeFig. 2), but sometimes the first annual ring is rather faint, and care nuist be taken not to mistakethe…
Building materials · Longleaf pine · Lumber
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
