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Fuel (WOOD A table showing)

WOOD.-A table showing the comparative value of various woods is given with the table of weights and measures. That cut from the body of a mature tree is best.

SOFT COAL. The objection to soft coal is the dust that arises from it, and the unpleasant smell of the gases of combustion. There is a great difference in the quality of soft coals from different mines, and it will be easy to learn the best varieties in the local market.

HARD COAL.-Bad coal has flat, dull pieces in it which remain hard, heavy and whitish when burned, called "bone." If in a scuttle full of coal weighing twenty-five pounds, a half pound of these white pieces are found, the coal is not good. Coal is pronounced good if it breaks at right angles firmly and with a bright fracture. If it shatters or is full of dull pieces, it is poor in quality. There is a vast difference in hard coal, a difference which few understand.