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"Dip," definition of, 105

Dipentene, in pine oil, 106

in turçjentine, 106 Distillation. (See also Hardwood distillation; Resinous wood distillation)

effect of various chemicals on, 59 Distillation cycle, for hardwoods, 17 Distilling oven, diagram.of, 15 dimensions of, 16 in softwood distillation, 96 Douglas fir, analytical data, 37 yields from,' 47

Elm, slippery, yield of various products from, 44, 45 Elm, white, yield of various products from, 44, 45, 46 "Essence," definition of, 105 Eucalyptus, analytical data, 37 yields of various products from, 44, 45, 46

Extracted chips, pulping of, 135 Extractives, of wood, 35 Extractors, 91, Q2

"Fat wood," definition and use of, 103 Fenchyl alcohol, in pine oil, 106 Flotation oil, use of pine oil as, 97 Fog formation, in gases, 72 Formaldehyde, uses of, 33 Formic acid, in pyroligneous acid, 66 "Formic acid number," 58 Fuel, used in distillation, 17

Gamma cellulose, determination of, 39 Gases, B. T. U. per cord yield, 64 from charcoal at high temperatures, 70

from hardwoods, composition of, 64,

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