sit low enough for a cover un- the drivmg one. This was done because if placed vertically strong white heat, and after cooling is sifted ar bolted, and der the cover of the outer box. Put the inner boxin place, to the end of the boat the’ large depressions and holes are finally sorted. This… … it will appear strange that bone, and are arranged upon THE the discovery has not been just sucha scientific principle made before, though that as claimed in his invention. clearly consists in calcining the mineral, a feature which From the above it is apparent that this nameless bone charcoal;…
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![An illustration from Eighty Years' Progress of the United States: a family record of American industry, energy and enterprise ... By eminent literary men [C. L. Flint and others] ... Embellished with ... engravings, etc (1868)](https://img.insideoutlibrary.com/img/200/bl-bl_003734531_1-267-2.webp)
