SCIENCE NOTES. The gypsum after burning is digested with 10 per cent solution of alum and after drying again burnt; on the addition' of water the gypsum crystallizes to a marble-like mass the so-called marble cementPharm Centralh. 41 779., scientific american, 1901-07-06
SCIENCE NOTES. The gypsum after burning is digested with 10 per cent solution of alum and after drying again burnt; on the addition' of water the gypsum crystallizes to a marble-like mass the so-called marble cementPharm Centralh. 41 779., scientific american, 1901-07-06
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