. Seasoning of wood; a treatise on the natural and artificial processes employed in the preparation of lumber for manufacture . Fig. 22. Work of Ambrosia Beetles in Tulip or Yellow Poplar , work of Xyleborus affinis and Xylehorus inermis; b, Xyleborus obesusand work; c, bark; d, sapwood; e, Fig. 23. Work of Ambrosia Beetles in Oak. a, Monarthrum mali aind work;b, Platypus compositus and work; c, bark; d, sapwood; e, heartwood;/, character of work in wood from injured log. ENEMIES OF WOOD 101 lumber, and staves and heads of barrels containing alco-holic hquids. The holes and g
. Seasoning of wood; a treatise on the natural and artificial processes employed in the preparation of lumber for manufacture . Fig. 22. Work of Ambrosia Beetles in Tulip or Yellow Poplar , work of Xyleborus affinis and Xylehorus inermis; b, Xyleborus obesusand work; c, bark; d, sapwood; e, Fig. 23. Work of Ambrosia Beetles in Oak. a, Monarthrum mali aind work;b, Platypus compositus and work; c, bark; d, sapwood; e, heartwood;/, character of work in wood from injured log. ENEMIES OF WOOD 101 lumber, and staves and heads of barrels containing alco-holic hquids. The holes and galleries are made by theadult parent beetles, to serve as entrances and temporaryhouses or nurseries for the development of their broodsof young, which feed on a fungus growing on the walls ofthe galleries. The growth of this ambrosia-hke fungus is inducedand controlled by the parent beetles, and the young aredependent upon it for food. The wood must be in ex-actly the proper condition for the growth of the fungusin order to attract the beetles and induce them to excavatetheir galleries; it must have a certain degree of moistureand other favorable qualities, which usually prevail duringthe period involved in the change from living, or normal,to dead or dry wood; such a condition is found in recentlyf
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkdvannostran
