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acridine action albumen alkaloids anthracene antiseptic Appendix Author beech Bethell Boucherie Boulton bridge Burnettizing carbolic acid cent Chanute chemical chemists chloride of zinc coagulation coal coal-tar coal-tar oil committee contained corrosive sublimate cost Creosote oils creosoted timber Creosoting process cresylic acid cross-ties cubic foot cylinder dead oil decay disinfectant distillation durable engineers evaporation experiments exposed Fahrenheit feet fluid gallons German germs heat heavier heavy oils hemlock impregnating inches injected iron Kyanizing laid less liquid matter method mixture moisture naphtha naphthalene obtained Paper patent phenol piles pine pores portion pounds practical prepared present preservation of timber preserving timber pressure putrefaction quantity rail Railroad Railway salt seasoned sleepers soluble solution specific gravity specimens spores steam substances sulphate of copper surface tank tar-acids tar-oil temperature teredo Timber Preserving tion track treated treatment trees untreated volatile white oak wood preservation zinc chloride