. The manufacture of pulp and paper : a textbook of modern pulp and paper mill practice. (a) Part of a tracheid (fiber) of jack pine showing type of pitting M in fiber wall where itadjoins a medullary ray; also bordered pits BP, which occur in the fiber wall where it adjoinsanother fiber. X 150. (6) Part of a tracheid (fiber) of balsam fir showing piciform pitting M in fiber wall where itadjoins a medullary ray. X 150. (r) Part of a tracheid (fiber) of Douglas fir showing piciform pitting M in fiber wall whereit adjoins a medullary ray; also spiral thickenings S, which occur in the fiber wall.
. The manufacture of pulp and paper : a textbook of modern pulp and paper mill practice. (a) Part of a tracheid (fiber) of jack pine showing type of pitting M in fiber wall where itadjoins a medullary ray; also bordered pits BP, which occur in the fiber wall where it adjoinsanother fiber. X 150. (6) Part of a tracheid (fiber) of balsam fir showing piciform pitting M in fiber wall where itadjoins a medullary ray. X 150. (r) Part of a tracheid (fiber) of Douglas fir showing piciform pitting M in fiber wall whereit adjoins a medullary ray; also spiral thickenings S, which occur in the fiber wall. X 150- Fig. 19.(Prepared by the Forest Products Laboratories of Canada.). Fig. 20.—Poplar Fibers from Mature Wood. X 20. (Prepared by the Forest Products Laboratories of Canada.) PROPERTIES OF WOOD 27
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpaperma, bookyear1921
