Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 54
VAN NOSTRAND'S ENGINEERING MAGAZINE. 40 they would still retain their original thick- shown in Fig. 4, let us see -what -would be ness at the centre, but would be a little the behavior of the several planks. Take reduced on each edge throughout, but the the centre plank first. After due season-… … when in the green state, the shape that found that the middle of the board would these squares would assume, after a period still retain the original thickness, from the of seasoning, would entirely depend on resistance of the medullary rays, while it the part of the tree to which they belong-…
Engineering
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