A New Supplement...: Ink.

A New Supplement to the latest Pharmacopoeias of London, Edinburgh, Dublin, and Paris, Forming A Complete Dispendatory, Conspectus, and Dictionary of Medical Chemistry, Giving All the Old and New Names, Including the New French and American Medicines, and Poisons; with Symptoms, Treatment, and Tests; as Well As Herbs, Drugs, Compounds, Veterinary Drugs, With the Pharmacopoia of the Vetenary College, Nostrums, Patent Medicines, Perfumery, Paints, Varnishes, And similar articles kept in the Shops; With Their Compositions, Imitations, Adulterations, And Medicinal Uses, Being a General Book of Formulæ and Recipes For Daily Reference in the Laboratory and at the Counter.
Fourth edition, corrected, improved, and very much enlarged.
By James Rennie, M. A., Editor of the Quarterly Journal of Foreign Medicine; the Pharmacopeia Universalis; Author of a Conspectus of Prescriptions in Medicine, Surgery, and Midwifery; the Pharmacopeia Imperialis, &c. &c.
London: Baldwin and Cradock. 1837.
London: Thomas Curson Hansard, Paternoster Row.

INK. The common writing ink is made with various proportions of sulphate of iron, galls, and gumwater. The following are a few receipts for making different kinds of ink.

Blue Writing Ink. To a small portion of nitric acid in water add ferro cyanide of potassium.

Common Writing Ink. Take lbj of galls in coarse powder, lb½ each of sulphate of iron and logwood rasped, four pints of water, and 3iv or more of gum arabic, macerate for a fortnight or more, shaking it well every day. Half a pound of pomegranate bark improves it.

Exhequer Ink. Take lbij of galls, lb½ each of gum arabic and sulphate of iron, two gallons of soft water, and proceed as in the last.

Japan Ink. The shining quality is imparted by a larger proportion of gum arabic and sugar candy, which, however, make it thick, and less free in the pen.

Ink Powder. Made with 3iv of powdered galls, 3j of sulphate of iron, 3ij of Prussian blue, 3j of gum arabic. THis is q. s. for Oij of boiling water.

Invisible or Sympatheric Ink is made with skim milk; or with juice of lemons; or with sulphate of copper and hydrochlorate of ammonia. All these appear only when heated.

Markin or Permanent Ink for linen. This I believe was first discovered by Mr. Hume, of Long-acre. It is prepared by dissolving in a glass mortar 3j of nitrate of silver in double its weight of pure water, to which add ten drops of nitric acid. Before it is applied the linen must be wetted with solution of 3j of pure carbonate of potass in 3jss of gum arabic water.

New Writing Fluid. (Stephens's). Boil gently in an iron vessel with a close lid for an hour lbss of sulphate of iron, 3iv of logwood, Oiv of rain water, add 3ij of gum arabic, and in a few days strain.

Prerogative Office Ink. Take lbj of galls, 3vj of gum arabic, 3ij of alum, 3vij of sulphate of iron, 3iij of gum kino, 3iv of logwood in coarse powder, and one gallon of water. Proceed as for common ink.

Printer's Ink. To every pound of the best lamp-black, well powdered, put half a pint of soft varnish, a quarter of a pint each of boiling linseed oil, and spirits of turpentine; mix, and boil together for half an hour, stirring it well the while. Care must be taken that it do not inflame, as water will not put it out. Prussian blue is added to very fine ink.

Red Ink for writing. Take 3iv of the raspings of Brazil wood, infuse in Oiij of good colourless vinegar, of white wine, for two or three day,s boil gently fown to Ojss and filter it while hot through paper. Put it again over the fire, and dissolve in it, first 3ss of gum arabic, and afterwads 3ss each of alum and white sugar. Or add to tincture of red sanders wood a solution of alum.

Red Ink for Printing is prepared with soft varnish, vermilion, and white of eggs. It should not be very thick. An inferior sort is made with common varnish and red lead.

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