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Keywords: The Oak (Marshall Ward) Fig 14.jpg en Fig 14 ” Radial longitudinal section of wood of oak highly magnified M Str medullary rays; Trach tracheids; Gef to the left smaller pitted vessels; Librf wood-fibers; H P wood-parenchyma The large mass of tracheids to the left of the center of the figure lies over one of the broad pitted vessels J Gr boundary of annual ring Kny 1892 The Oak A Popular Introduction to Forest-Botany H Marshall Ward PD-old-100 The Oak Marshall Ward |