. Annual report . Photo by Harry A. Radford. CARLOAD OF TREATED SWITCH-TIES AT THE MOMENT OF EMERGING FROM v Harry V. 2X6 TONGUE-AND-GROOVE PLANKS, WHICH HAVE Jl -I BEEN TREATED. ARTIFICIAL PRESERVATION OF TIMBER. 353 Impregnation ti)e §e^f Aetfyod As remarked above, none of these expedients is comparable with impregnation; and the latter method, in this country, is almost exclusively in use. Nails, metallic sheathings, and the retaining of the bark upon piles, have been liberally tested, but in almost every case impregnation inally resorted to. In the United State
. Annual report . Photo by Harry A. Radford. CARLOAD OF TREATED SWITCH-TIES AT THE MOMENT OF EMERGING FROM v Harry V. 2X6 TONGUE-AND-GROOVE PLANKS, WHICH HAVE Jl -I BEEN TREATED. ARTIFICIAL PRESERVATION OF TIMBER. 353 Impregnation ti)e §e^f Aetfyod As remarked above, none of these expedients is comparable with impregnation; and the latter method, in this country, is almost exclusively in use. Nails, metallic sheathings, and the retaining of the bark upon piles, have been liberally tested, but in almost every case impregnation inally resorted to. In the United States most of the large impregnating plants are locatedin the Southwest. Inquiry of the Forest Service, Department of Agri-culture, elicited the fact that there are but six such plants in the EasternStates. They are: Eppinger & Russell Company. Long Island City, N. Y. (Creosoting.)Atlantic Creosoting and Wood Preserving Company. Norfolk, Va. (Creosoting.)Norfolk Creosoting Company. Norfolk, Va. Wyckoff Pipe and Creosoting Company, Portsmouth, Va. (Creosoting.)Otis Allen & Son. Lowell, Mass. (Kyanizing.)Unit
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectforests, bookyear1902
