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330 THE PHOTOGRAPHIC NEWS. [May 25, 1883. This reminds one of the ingenious device of the Irish girl, who told her forbidden lover she was longing to possess his portrait, and intended to have it. « But how ifyour frie nds see it? " inquired he. 11 Ah, but I’ll tell the artist not to make it like you, so they won’t know it.” Qatent Entelligente. Application, for Letters Patent. 2495. John IMRAY, of 28, Southampton Buildings, Chancery Lane, in the county of Middlesex, for an invention of “ Im provements in the manufacture and treatment of photographic paper.”—A communication to him from abroad by Charles Cros and Auguste Vergeraud, both of Paris, in the republic of Prance.—Dated 18th May, 1883. Patent Sealed. 1608. RAPEAEL Hunter Brandon, of 1, Rue Laffitte, Paris, in the republic of France, Engineer and Patent Agent, for an in vention of “ Improvements in the formation of gelatine-bromide film paper for photographic negatives.”—A communication to him by Alphonse Charles Auguste Thiebaut, Photographer, of 1, Hue Laffitte, Paris, France.—Dated 30th March, 1883. Patents Granted in Austria-Hungary. J. J. D. HUTINEr and P. E. Lamy, of Paris, for “ Obtaining photographic paper of chloro-bromide or rodo-gelatine.”—Dated 22nd September, 1882. J. Plener, of Paris, for " Photographic emulsions.”—Dated 7th September, 1882. Specification Published during the Week. 4671. C. P. Evans, for “Photography.” This invention consists in photographing the object or person direct on to a bust or image composed of glass, china, earthen ware, or of papier-mache or similar substance prepared with a white surface, by placing the bust or image within the camera, or photographing apparatus, instead of the negative plate, having previously prepared the bust or image to receive the photograph. The bust or image is held from the top of the camera upon a sliding cover, so that its position can be adjusted, and, at the same time, the camera kept closed, and an adjusting screw is also attached to the bust or image, so as to raise or lower it in order to set it into the exact position required.—Provisional Pro tection only. TWELVE ELEMENTARY LESSONS ON SILVER PRINTING. Lesson X.—Burnishing, Enamelling, etc. In the last lesson we mentioned that the object of rolling is to produce an even and polished surface on the photo graph. The burnisher acts in a somewhat similar manner to the hot rolling press, but in skilled hands it is capable of producing a more brilliant surface and better tones. between two polished steel rollers, or a steel bed and rollers, as in fig. 1. Fig. 2 is a sketch of an ordinary burnisher. Ply. 2. To ensure success with the burnisher it is necessary to lubricate the photograph, and there are several ways of doing this; perhaps the highest degree of polish is obtained with curd soap rubbed on in the dry state by means of a flannel pad. Some operators prefer using an alcoholic solution of soap made by dissolving sixty grains of curd soap in a small quantity of water, adding methy lated spirit to make twenty ounces. Moisten a tuft of eotton-wool with the soap spirit, and rub the surface of the photograph on every part; five minutes afterwards it may be passed through the hot burnisher, care being exercised not to scorch the photograph, or make a halt while it is passing over the heated bar. Care is also necessary to prevent particles of dust entering between the bar and the photograph, as scratches would be pro duced on the subsequent prints ; should this happen, the burnishing tool should be rubbed on an oil stone, with a little powdered emery, finishing on an emery knifeboard to bring up the polish. As many persons object to using soap in any form on the photograph, they will find a very good substitute in wax. The following has been lately recommended at one of the photographic societies, and we have found that it answers well:— Benzoline spirit 1 pint Paraffin wax ... ... ... ... 20 grains Among other modes of obtaining glazed surfaces on photographs besides rolling and burnishing, so-called enamelling must be mentioned, the finished result giving a very fine glaze, as highly polished as a glass plate. The process consists in placing the albumenized surface of a photograph, in a moist condition, in contact with a polished glass plate which has received a coating of normal collodion and a somewhat dilute solution of gela tine ; when dry the print will drop off. For the informa tion of those of our readers who have never tried the process we will describe the operations :— Tig. 1. The principle of the burnisher differs only from the hot rolling press, inasmuch as the print is dragged by a roughened roller over a highly polished and hardened steel bar, which is stationary and heated, instead of passing | Transparent gelatine 1 ounce Water ... ... ... ... 8 ounces soak one hour, then add— Glycerine 10 drops heat on a water bath until the gelatine is dissolved, filter while hot. Normal Collodion. Pyroxyline .. 2 drachms Methylated ether ... ’ ... ... 8 ounces Methylated alcohol ... ... 2 ,, These proportions may be altered to suit the cotton used. Mount the photographs by means of gelatine, as above, on thin cardboard ; what is known as Bristol board being very suitable. When quite dry, touch out any white spots which may be caused by dust during printing, or faults in the negative, afterwards placing them in a dish of cold water to soften the board. This will take place in about ten minutes more or less. The prints should remain until quite