Manure
See LOAM; HORSE-MANURE.
Marble is a rock belonging to the varieties of carbonate of lime which have a granular and crystalline texture. It is composed of carbonate of lime, either almost pure when the color is white, or combined with oxide of iron or other impurities which give various colors to it. The far-farmed quarries of Carrara, Italy, have supplied this beautiful material for statuary purposes from time immemorial. The pure white marble is quarried also in Vermont, but it is not held in as high estimation as that from Italy. Of variegated marble there are many sorts found in this country, but generally not fit for sculpture. See LIME-STONE.