North American Forest Research. Investigative Projects in Forestry And Allied Subjects
North American Forest Research. Investigative Projects in Forestry And Allied Subjects
Society of American Foresters. Committee On American Forest Research
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205. Bleaching and equalizing color of heartwood and sapwood of various species (L-2S0). Some work has been done on oak chair stock and a method has been developed on a small laboratory scale which gives satisfactory results. Make commercial demonstrations in cooperation with some furniture factory and work on other species if possible. 206. The production and quality of American storax from Liquidambar styraciflua (sweet gum) (L-251). Preliminary study and report finished. Cooperative study of... pro- duction methods started. Digitized by Google 2i8 NORTH AMERICAN FOREST RESEARCH Continue along this line with introduction of native products to con- sumers. PATHOLOGY 207. Toxicity of preservatives with pure culture in petri dishes and jars (L-137). Tests have been completed on various coal-tar creosotes and fractions^ on water-gas-tar creosote, and mixtures of these with various fractions, spirittine, S. P. F. carbolineum, Morel preservative, B. M. mixture,, zinc sulphate, cresol mixtures, beechwood tar distillates, preservol Mykantin, anthrasota, Barrett's grade i oil, and reports prepared.
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