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This page contains a formula or preparation using substances now known to be dangerously toxic, such as arsenic, mercury, lead, or cyanide compounds. Exposure to these substances can cause severe poisoning, permanent injury, or death.
In addition, this page describes trade processes that use dangerously toxic materials such as cyanide solutions, mercury amalgams, or strong acids. These processes require training, equipment, and precautions far beyond what the text describes.
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Another (Cheaper method than the above)
A cheaper method than the above, available for modelling and luting, is to make a mixture of pipe-clay with a solution of chloride of calcium of the specific gravity of 1.35. This retains its plasticity for more than a year, and makes a capital luting.
A New Artificial Light, Possessing a very high degree of actinic power, has been discovered by M. Sayes, of Paris. It is produced by the combustion of a mixture of 24 parts of well-dried and pulverized nitre with 7 parts of flour of sulphur and 6 of realgar. This mixture does not cost more than 10 cents per pound, and its light is therefore cheaper than the magnesium, to which it is only very slightly deficient in actinic energy. It is not, however, suitable for in-door photography.
New Waterproofing Material.
Paraffin is melted with 5 per cent. of linseed-oil and run into cakes for use. When needed it is melted, and the mixture spread with a brush over the cloth, leather, stone, iron, etc.
The above is also used as a good insulator for electric telegraph wires.
To imitate Meerschaum.
Mix 1 part of casein, or curds of milk, with 6 parts of calcined magnesia and 1 part of oxide of zinc, and a sufficient quantity of water to form a pasty mass, which is left to solidify, and when dry it is extremely hard, susceptible of receiving a high polish, and is sold as a substitute for meerschaum. To clean Silver or Plated Ware.
Plunge the article in this solution: Hyposulphite of soda, 1 lb.; sal-ammoniac, 8 oz.; solution of ammonia, 4 oz.; cyanide of potassium, 4 oz.
Let it remain hour, wash, and rub with buckskin. The cyanide of potassium is very poisonous. It may be omitted, but then the solution is not so active. No powder is necessary in polishing.
Estimate of Farm Seeds for an Acre.
Wheat, broadcast,. drilled, Rye, broadcast, drilled, Barley, broadcast, Oats, broadcast, " “ " drilled, drilled, Timothy, { RedClover, • 14 to 2 bushels. 1½ " 14 “ 1½ to 14 " 2 to 2 “ 12 to 2 2 to 3 “ 2 “ When sown with grain in autumn, to be follow- 11 to 2 galls. ed by clover in spring. { Sown on grain in } spring in connection with Timothy (without 14 to 2 galls.
Timothy double quantity). } 1 to 1½ bushels of 14 lbs.
Herbs, or Red Top, Kentucky Blue Grass, 1 to 1½ Lucerne, drilled, Dutch White Clover, broadcast, " " Lawn Grass, Millet, Corn, in hills, " drilled, 2 to 2 66 66 14 " 10" 8" 6" bushels of 15 " to 1 bushel. 1 to 1½ gallons 1 bushel.
Sorghum, or Chinese sugar cane, 2 to 3 quarts.
Buckwheat, Beets and Mangel-Wurzel, Carrots, Turnips and Ruta Baga, Parsnips, Beans, in drills, 24 feet apart, .
The clay is first well dried, and then rendered plastic by admixture with glycerine. It retains its plasticity for months, and is capable of being used over and over again just like wax, with the advantage of always retaining the same consist-Potatoes, 4 to 6 lbs. 2 to 3 lbs. 1 lb. 4 to 6 lbs. 1½ bushels. 12 "