Note (return) — TRANSLATION OF THE PRAYER BOOK INTO FRENCH.

I obtain these results with a twenty-grain solution of nitrate of silver, a fact that will, I think, commend the plan to most operators. Thou wilt be able to judge of the result from the inclosed specimen.[7] I use Canson's paper, either albumenized or plain (but the former is far preferable). If albumen is used, I dilute it with an equal measure of water, and add half a grain of common salt (chloride of sodium) to each ounce of the mixture. This is applied to the paper with a soft flat brush, and all bubbles removed, by allowing a slender stream of the mixture to flow over its surface: it is then hung up to dry, and afterwards the albumen is coagulated with a hot iron. If the paper is used plain, a solution of common salt (half a grain to one ounce of water) is placed in a shallow tray, and the paper floated on its surface for a minute, and then hung up to dry. Excite, in either case, with an ammonio-nitrate of silver solution (twenty grains to one ounce of water), by floating the paper, prepared side downwards, for one minute, and hang up to dry.