Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 56
Fig. 166.—Heart-shake in Balk. Defects in Balk Timber. Cup-shakes.—These are cracks extendingcircumferentially at one or more places,caused by the separation of the annual rings,as in Figs. 163 and 164. TIMBER, 41 Doatiness.—This is a speckled stain foundin beech, American oak, and other timber,due… … 167.—Sapwood inBalk. Fig. 168.—Star-shakein Log. Dry Rot.—If the balks have been stackedon land with insufficient ventilation, thegrowth of a fungus over them, like white orbrown roots, may indicate that dry rot hasalready begun, although it is chiefly foundunder kitchen floors. Foxiness.—A reddish…
Carpentry · Joinery
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