. Guidebook for the identification of woods used for ties and timbers . Fiq. 1.—Port Orford section magnified 15 Fig. 2.—White Fir. Cross section magnified 15 diameters. (Note row of abnormal resin duels in lover portion.) • , U. S. Dept. of Agriculture. Identification of Woods. Plate XXIX.

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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashingtongovtprin