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Cement for Marble and Alabaster.
Portland Cement, 12 parts; slacked lime and fine white sand, each 6 parts; infusorial earth, 1 part. Make-into a thick paste, with silicate or soda. Needs no heat; sets in 24 hours; crack is not readily found. —Druggist? Circular.
Remarks. —As stated in other places, where "parts" are mentioned, it matters not what sized measure is used, whether a spoon, pint or peck, or if weights, whether it be drs., ozs. or lbs. Simply 12, 6 and 1, in this case, would be the number to use, or the proportions to keep.
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