Pound a small piece of nitrate of silver in a mortar, add soft water to it, mix them well together, and keep in a phial tor use. When you wish to silver any article, immerse it in this solution, let it remain till it turns of a deep yellow; then place it in clear water, and expose it to the rays of the sun. If you wish to depicture a figure, name, or cipher, on your ivory, dip a camel's hair pencil in the solution, and draw the subject on the ivory. After it has turned a deep yellow, wash it well with water, and place it in the sunshine, occasionally wetting it with pure water, In a short time it will turn of a deep black color, which, if well rubbed, will change to a brilliant silver.