. Fig, 196. — Dry-rot fungus (Merulius lacrymans); on the right the mycelium is visible as white strings. After Freeman. change, a word is due on account of its vast importance, involving, as it does, all structural wood. The fact that the railroads purchased 121,402,611 cross-ties in the year 1915, and larger numbers in preceding years; that the num- ber of posts in use in 1910 was approximately 4,000,000,000,

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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921