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Portable ink
297"
Item8 and Novelties.
view of the great draws upon the deposits of Cornwall and Bantu, may be quieted, especially since to the new region, then~ we may safely add that of Queensland, an account of which was published in one of the late issues of tim " Journal." G l y c e r i n as a S o l v e n t . - - M . Klever has published a lengthy table of the solubility of wtrious substances in glycerin, the following abstract of which may be of value to some readers of the " Journal." From his published observations it appears that one hundred parts, by weight, of glycerin dissolve, at ordinary temperatures : Parts by Weight.
20 20 10 10 15 50 40 20 20 5"50 10 30 7"50 27 1"9
Substance,
Arsenious Acid. Arsenic Acid. Benzoic Acid. Boric Acid. Oxalic Acid. Tannic Acid. Alums. Ammonium Carbonate. " Chloride. Tartar Emetic. Barium Chloride. Cupric Sulphate. Mercuric Chloride. " Cyanide. Iodine. Parts by Weight. 0"45 0.50 0-25
Parts by Weight.
Substance.
0"20 Phosphorus. 20 Plumbic Acetate. 50 Potassium Arsenate. 3"50 " Chlorate. 25 " Bromide. 32 " Cyanide. 40 " Iodide. 8 Acid Sodium Carbonate. 60 Borax. 98 Sodium Carbonate. 20 " Chlorate. 0"10 Sulphur. 50 Zinc Chloride. 35 Zinc Sulphate. 50 Urea. Substance. Morphine. Quinine. Strychnine.
Portable I n k . - - F r o m the "Journal of the Society of Arts" we learn that Prof. Boettger has suggested an idea that may prove ot" service to exploring parties and others. White blotting.paper is saturated with anilin black, and several sheets are pasted together to form a thin pad. When wanted for use, a small piece is torn off and covered with a little water. The black liquid which dissolves out is a good "writing-ink. A square inch of the paper will be found to perform considerable service, and, as water is always available~ th~ ink is readily made.
Item8 and Novelties.
view of the great draws upon the deposits of Cornwall and Bantu, may be quieted, especially since to the new region, then~ we may safely add that of Queensland, an account of which was published in one of the late issues of tim " Journal." G l y c e r i n as a S o l v e n t . - - M . Klever has published a lengthy table of the solubility of wtrious substances in glycerin, the following abstract of which may be of value to some readers of the " Journal." From his published observations it appears that one hundred parts, by weight, of glycerin dissolve, at ordinary temperatures : Parts by Weight.
20 20 10 10 15 50 40 20 20 5"50 10 30 7"50 27 1"9
Substance,
Arsenious Acid. Arsenic Acid. Benzoic Acid. Boric Acid. Oxalic Acid. Tannic Acid. Alums. Ammonium Carbonate. " Chloride. Tartar Emetic. Barium Chloride. Cupric Sulphate. Mercuric Chloride. " Cyanide. Iodine. Parts by Weight. 0"45 0.50 0-25
Parts by Weight.
Substance.
0"20 Phosphorus. 20 Plumbic Acetate. 50 Potassium Arsenate. 3"50 " Chlorate. 25 " Bromide. 32 " Cyanide. 40 " Iodide. 8 Acid Sodium Carbonate. 60 Borax. 98 Sodium Carbonate. 20 " Chlorate. 0"10 Sulphur. 50 Zinc Chloride. 35 Zinc Sulphate. 50 Urea. Substance. Morphine. Quinine. Strychnine.
Portable I n k . - - F r o m the "Journal of the Society of Arts" we learn that Prof. Boettger has suggested an idea that may prove ot" service to exploring parties and others. White blotting.paper is saturated with anilin black, and several sheets are pasted together to form a thin pad. When wanted for use, a small piece is torn off and covered with a little water. The black liquid which dissolves out is a good "writing-ink. A square inch of the paper will be found to perform considerable service, and, as water is always available~ th~ ink is readily made.