ces, upon which the coal dust, or fine mally small amount of zinc. And as there are hosts of san- white. The pictures in the illustrated journals, such as Leslie’s, Harper's, American Ayrieulturist, Appleton’s Jour- coal, may rest and burn, while the airis admittedt between nal, SCIENTIFIC… … drift, according to particular exigencies, canary color,thu texture fine and close, We are informod that the grates, after and the surface free from dark markings; HILDRETH’S FURNACE GRATE. eleven months’ use, show no signs of great care is required in preparing the burning out or warping, being as…
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