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Typo: A Monthly Newspaper and Literary Review, Volume 1

(From the British and Colonial Printer and Stationer.)

(From the British and Colonial Printer and Stationer.)

Stereotyping Woodcuts.—Cuts should be thoroughly dry before moulding, especially if pieced; otherwise the great heat is liable to make them warp and split. [The safe method is to allow the mould to dry gradually under pressure, without applying heat.—Typo.]

Waterproof Glue.—In order to render glue insoluble in water, even hot water, it is only necessary when dissolving it for use to add a little potassium bichromate to the water, and expose the glued part to the light. The proportion of bichromate will vary with circumstances; but for most purposes, about one-fifth of the amount of glue will suffice.

To Renew Faded Inks.—Moisten the paper with water, and then pass over the lines of writing a brush, which has been wet in a solution of sulphide of ammonia. The writing will immediately appear of a dark color, and in the case of parchment, will so remain. On paper it gradually fades out, but may be restored at pleasure by the application of the sulphide. The action of this substance is due to the iron of the ink being transformed by the reaction into the black sulphide.