Part II

. Materials Employed in Horology.

Iron. Cast Iron. Steel. General Observations. Special Observations. Determination of the Qualities of Steel. Preparations of Steel. Hardening. Tempering. to Whiten and Blue Steel. Case-hardening. Influence of Foreign Metals and Metalloids on the Qualities of Iron and Steel. Copper. Zinc. Brass. Hammer Hardening of Brass. to Anneal Brass. Cast Brass. Tin. Bronze. Sterro. Lead. Nickel. German Silver. Gold. Silver. Aluminium and Aluminium Bronze. Mercury. Platinum. Palladium. Characteristic Properties of Alloys. Soldering. Methods of Soldering. Bronzing. Gilding. Acids and Salts. Oil. Alcohol. Benzine, Etc. Polishing Materials. Preparation of Polishing Materials. Smoothing. Smoothing of Brass. Smoothing of Steel. Polishing. to Polish Steel. Cement, Wax, Resin, Etc. Enamel. Precious Stones. Working in Precious Stones.

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