Thickness of the Coal Measures, 99--Fifteen workable
seams, 100--Different kinds of coal described, 100--The
chemical changes in coal beds, 101--Deficient
nomenclature, 102--Lignite an unsuitable name for the
coals of Washington Territory, 103--The coking quality not
general in these coals, but found in some, 104--Analyses
of Washington Territory coals, 106.