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To Enamel Cameo Pictures

a syphon, and reserve the residue. If the Ordinary well polished glass plates are coated bottle has become partially filled in course of time with insoluble chloride of silver and cabinet prints, etc., simply by coating them metallic gold, place the residue on a filter, with a glutinous plain collodion, made as wash it with very dilute acid, and, lastly, follows: Alcohol, 3 ounces; ether, 4 ounces; with water. After drying, it is to be mixed pyroxyline, 42 grains. Dissolve and filter in with several times its weight of dry carbonate the usual manner. The prints are first cut of soda, the whole conveyed to a crucible, and the latter heated to a bright red heat, and kept there for about 10 minutes. After taking the crucible out of the fire, and allowing it to grow cold, it is broken, the button of the alloy of gold and silver cleaned, and heated in a suitable vessel with dilute nitric acid, which will dissolve all the silver, as nitrate of silver, and leave the gold in a finely divided state.

This is dissolved by nitro-hydrochloric acid to the proper size and floated on the reverse side upon clean water until they lie perfectly flat; then take one print at a time and place it on a piece of glass of the same size as itself, moist side downwards; it easily adheres to the glass. Let the excess of water drain off, and remove all moisture from the picture surface; now coat it with the collodion and let it drain in the usual way, then dry it before the fire or in any manner which is most (aqua regia). It is hardly necessary to say convenient. This polish is not so flagrant on the one hand as the so-called enamel surface, nor so dead as an ordinary albumen print that has undergone all the operations up to the