A Manual Of Photography

THE FEBBOTYPE.' dissolved in one fluid ounce of water to which are added labout five grains of common salt, and half a drachm of mucilage of gum arable. When dry, the paper is drawn over the surface of a solution of sixty grains of nitrate of silver in one ounce of - tilled water. Allowed to dry in the dark, the paper nov for use, is of a pure white, retains its colour, and 1may- be pre- served for a considerable time in a portfolio, until wanted tor SThe preparation of this paper is by no means difficult, but requires care and attention. The solutions must be applied very eq^ny over the paper, which should be immediately hung upon a frame or clothes’ horse to dry, Extreme care must be taken that the paper be not exposed to light, after the nitrate of silver solution has been applied, until required for use. Many of the disappointments experienced by the experimenters on the euer giatype are occasioned by a neglect of this precaiition, although no apparent effect may have been produced by the ex posure” the ellarness of the subsequent picture will be ser-ously injured. The succinic acid must also be very - pure Weshall now briefly describe the method of applying this process to the different purposes for which it is best adapted the varying circumstances of time, place, and hg, necessary such modifications of the following direction.as the experience of the operator may suggest. As a general rule, an open situation, sunshine, and, if possible, the morning .sun, should be preferred, as the image is sharper, and the -co our produced more intense, and less affected by the subsegue fixing process. p „ In the camera, for a building or statue an exposure of hada minute in strong sunshine is usually sufficient, 01 1 p? taken under ordinary conditions, two or three mm Alien the paper is taken from the camera, nothing is visible upon it ■ but by attending to the following directions the latent åre will quickly deväope itself. Having mixed together Lout one dr^hm 5 a satuAed solution of and two or three drachms of mucilage «/»""^’SX‘roer quantity into a flat dish. Pass the prepared side of the paper taken from the camera rapidly over this mixture, taking care to ensure complete contact in every sufficiently impressed, the picture will almost immediately appear, and the further action of the iron must be stopped by the apph- cation of a soft sponge and plenty of clean water Should the image not appear immediately, or be imperfect in its details the iron solution may be allowed to remain upon it a short time,