Report upon the forestry investigations of the of agriculture1877-1898 . ned in water,glycerin, or chloriodide of zinc. The relative amount of the thick-walled, dark-colored bands ofsummer wood, the resin ducts, the dimensions of the common tracheids and their walls, both inspring and summer wood, the medullary rays, their distribution and their elements, are theprincipal subjects in dealing with coniferous woods; the quantitative distribution of tissues, orhow much space is occupied by the thick-walled bast, how much by vessels, how much by thin-walled, pitted tracheids and pare
Report upon the forestry investigations of the of agriculture1877-1898 . ned in water,glycerin, or chloriodide of zinc. The relative amount of the thick-walled, dark-colored bands ofsummer wood, the resin ducts, the dimensions of the common tracheids and their walls, both inspring and summer wood, the medullary rays, their distribution and their elements, are theprincipal subjects in dealing with coniferous woods; the quantitative distribution of tissues, orhow much space is occupied by the thick-walled bast, how much by vessels, how much by thin-walled, pitted tracheids and parenchyma, and how much by the medullary rays; what is therelative value of each as a strength-giving element; what is the space Occupied by the lumina,what by the cell each of these tissues—these are among the important points in the studyof the oaks. Continued sections from center to periphery, magnified 25 diameters, are employed in findingthe relative amount of the summer wood; the limits of the entire ring and that of spring and TIMBEK PHYSICS STATEMENT OF RESULTS. 389. [i±o_ W357o\ FT. 203Rings^-33%
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry
