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Keywords: The Oak (Marshall Ward) Fig 13.jpg en Fig 13 ”Highly-magnified transverse section of wood of oak showing three of the large pitted vessels Gef and a number of smaller ones M Str medullary rays of which part of a large one is shown to the left; Librf wood-fibers; H P wood-parenchyma; Trach tracheids; 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 |