CURE FOR SMOKY CHIMNEYS.—“Some of your readers, Mr. Editor, may probably like to know how I have cured, in my own house, that worst of evils—a smoky chimney. The following is the plan I recommend: Inflate a large ox bladder with air, and tie it by the neck to the middle of a stick, which place across the inside of a chimney, about two feet from the top, or at the foot of the chimney-pot. The buoyancy of the air keeps the bladder continually in a circular motion, and thus prevents the rush of air into the tunnel from descending so low as the fire-place.”—S. W. T. EXCELLENT DYES.—A decoction of oak-bark dyes wool a fast brown of various shades, according to the quantity employed; an infusion of walnut-peels will also dye brown. The wool should be previously dipped in a solution of alum and water, which brightens the colour.—For red dye: boil in a bath of madder, previously rinsing the goods in alum; or, if you wish for purple, employ, instead of alum, a bath of acetate of iron. Red dyes are also given by archil, cochineal, Brazil-wood, &c.—For blue dye: boil in a bath of logwood, to which a small quantity of blue vitriol has been added, using the alum bath as in the other cases.—M. C. TO DYE SILK LILAC.—For every pound of silk, take a pound and a half of archil, mix it well with the liquor; make it boil a quarter of an hour, dip the silk quickly, then let it cool, and wash it in river water, and a fine half violet, or lilac, more or less full, will be obtained. DYES FOR IVORY.—_Black._ Immerse the ivory in a boiling solution of logwood, take it out and wash it in a solution of copperas. _Blue._ Immerse the ivory in a mixture of sulphate of indigo and water, partly neutralized with potash. _Green._ Steep blued ivory in a solution of nitro-muriate of tin, and then in a decoction of fustic; or it may be at once dyed green by steeping it in a solution of acetate of copper. _Yellow._ Steep the ivory in a bath of neutral chromate of potash, and afterwards in a boiling solution of acetate of lead. _Red._ Steep the ivory for a short time in a solution of tin, then in a decoction of Brazil or cochineal. _Violet._ Moisten the ivory with a solution of tin, as before, then immerse it in a decoction of logwood.—T. S. TO DYE HAIR AND FEATHERS GREEN.—Take of verdigris or verditer of each one ounce, gum water one pint; mix them well, and dip the hair or feathers into the mixture, shaking them well about.