High school manual training course in woodwork, including cost of equipment and supplies and studies on trees and wood (1905)
Ritchey, Samuel Edward, 1866- · New York, American Book Company · leaf 31
n, medullary ray Medullary or Pith Rays—Beside the vertical ceils,there are horizontal cells, extending from the pith tothe bark, radiating from the pith in all directions, bind-ing the vertical cells or fibers together. FoodThe food of a tree is the mineral and chemical mattertaken up from the… … Fig. 21.—Board with edge quartersawed. The annual rings shownon the toil end of the board ap-pear on the face of the board asgrain; the medullary or pithrays appear on the edge as raysor lights The water, or sap, is taken up by the little ro it hairswhich grow on the rootlets, and carries various…
Woodwork (Manual training) · Cabinetwork
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