AMALGAM

n, A?m-a?l’ga?m. Lat., amalgam a. From pé- Aayua, an emollient (from waddacew, to make soft), Fr.,amalgame. Ger., Quecksilberlegirung. It., Sp., amalgam a. 1. A combination of mercury with some other metal, 2. Any soft alloy. 3. In general, any mixture or compound of di imilar things. [B, 2.]— Chase’s new a. A dental a. made by melting 40 parts of pure silver, adding 30 of pure tin, stirring, and adding 5 each of tears of Lo of zinc and of antimony and 10 of beeswax, rasping, and removing all traces of iron with a magnet, mercury being finally added at the time it is used. [L 18.]=Contour &. A dental a. consisting of 58 parts of silver, 37 of tin, 5 of gold, and a sufficient quantity of mereury. [L, 125.]~Dental a. Fr., amalgame des dentistes. Ger., Zahnamalgam. A composition used for filling cavities in teeth) made of mercury and oue or more other metals. Gold, silver, copper, tin, and zinc are most commonly used for this purpose. [L, Ta —Electrical a. An a, made by adding 5 parts of mercury, heated to redne , to 2 parts of zinc and 1 part of tin melted together. It is applied to the cushions of frictional electrical machines. [B, 20. —Facing a. A dental a. of 50 parts of tin, 30 of silver, 6 of gold, 4 of zinc, and a sufficient cman of mercury. It resists discoloration, and is therefore used in localities exposed to view. [L, 125.]— Front-tooth a. A mixture of 1 part of contour a. and 2 parts of facing a. [L. 135)—Kienmayer's a. See Electrical a—Submarine a. A dental a. made of 60 parts of silver, 35 of tin, and 5 of copper, with a sufficient quantity of mercury. [L, 125.|—Town send’s a. A dental a. made of 4 parts of silver and 5 of tin melted together and rasped, after which it should be kept in close-stoppered bottles for several months, mercury being added when it is used. (L, 125.)