Age of trees and time of blazing determined by annual rings . 1 Beech I Sycamore I Birch i Fig. 4. — Diffuse-porous TN-oods: ai\ annual ring; pr, pitli rays -wliicli are broad at a, fine at /), indistinct at c and cJ. ent; in some cases, such a difference in results is due merely to theinability of the eye to detect an extremely narrow but otherwise well -definedring, and theerror may becorrected bym i c other cases,however, thedifference isbased on theactual absence Fig. 5.—Cross section of Dasswood (magnified): v, vessel; rnr, pith rays, of One Or more rings al
Age of trees and time of blazing determined by annual rings . 1 Beech I Sycamore I Birch i Fig. 4. — Diffuse-porous TN-oods: ai\ annual ring; pr, pitli rays -wliicli are broad at a, fine at /), indistinct at c and cJ. ent; in some cases, such a difference in results is due merely to theinability of the eye to detect an extremely narrow but otherwise well -definedring, and theerror may becorrected bym i c other cases,however, thedifference isbased on theactual absence Fig. 5.—Cross section of Dasswood (magnified): v, vessel; rnr, pith rays, of One Or more rings along a given radius, extremely unfavorable circumstanceshaving led to a failure of the regular, continuous development of these
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Keywords: ., bookauthorfernowbebernhardeduar, bookcentury1800, bookdecade1890
