. Fi(i. 180. — Drj rut fungus (Merulius lacrymans) ; on the right the mycelium is visible as white strings. After Freeman. 4,000,000,000, necessitating an annual replacement of some 500,000,000 in the United States, indicates the enor- mous money values involved. This kind of decay is brought about by agencies similar, sometimes identical, with those causing rot in living trees,

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Keywords: ., bookauthorstevensf, bookcentury1900, bookdecade1910, bookyear1910