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SEPTEMIBBR 21, 1883. | THE PHOTOGRAPHIC NEWS. 605 the like, and by the Woodbury process, for printing from in printing processes in which are employed fatty or greasy ink, which method consists in giving to half-tone pictures, or photo graphs on paper, glass, or gelatine, stippled or grained or lined surfaces substantially in the manner as herein set forth. Second. The method, substantially herein set forth, of prepar ing pictures and photographs to be used for the production of printing surfaces by the art of photography, zincography, photo type. photo-lithography, photo-engraving, and the like, and by the Woodbury process for printing from in printing processes in which are employed fatty or greasy inks ; which method con sists of giving to the picture or photograph an indented surface by impressing into the picture or photograph a grained or lined material or substance, such as wire gauze, substantially in the manner herein set forth. Third. The method substantially heroin set forth of preparing photographs on paper, glass, or gelatine to be used for the pro duction of printing surfaces by the arts of photography, zinco graphy, phototype, photo-lithography, photo-engraving, and the like, and by the Woodbury process for printing from printing processes in which are employed fatty or greasy inks, which method consists of giving to a photograph a grained or lined sur face, substantially in the manner as herein described in reference to the second part of this specification. Fourth. The method substantially herein set forth of giving to metal type a grained or lined surface, as herein described in reference to the third part of the specification. Fifth. The method substantially herein set forth of levelling lead plates, which method consists of treating lead plates in the manner substantially as herein described in reference to the fourth part of this specification. Grant of Provisional Protection. 3948. Joseph Julius Sachs, of 8, Union Court, Old Broad Street, in the city of London, for an invention of “ Improve ments in the manufacture of pliable plates and surfaces as a substitute for glass for photographic and other purposes.”—A communication to him from Messieurs Fickeissen and Becker, resident at Villengen, Baden, Germany.—Dated 14 th August, 1883. Patent Granted, in France. 24,189. R. B. and B. C. West, of Quilford, Conn. (U.S.A.), for “A photographic copying process.”—Dated 27th February, 1883.—Class 57. Patents Granted in Belgium. 62,139. H. J. H. MACKINSTEIN, of Brussels, for "Photographic apparatus.”—Dated 26th July, 1883.—French Patent, 24th July, 1883. 62,248. T. Samuels, of Moken (England), for “ Apparatus for maintaining and replacing negatives or dry plates in photo graphic cameras.’’—Dated 7th August, 1883.—French Patent, 4th August, 1883. Patents Granted in France. 153,563. KELLER and Guerin, of Lunville, for " Photoglyptic impressions on fayence, porcelain, glass, &c., and on pottery in general.”—Dated 10th February, 1883.—Class 13. 153,634. BALAaNY, for “ Gelatino-bromic paper for photo graphy.”—Dated 10th February, 1883.—Class 17. 153,704. MADER, for “ A duplicate box for photographers.”— Dated 14th February, 1883.—Class 17. Patents Granted in United States. 284,269. “Folding tripod or support.” William J. Bishop, Philadelphia Pa. (No model). This stand consists of a central staf consisting of a metal tube, and light metal legs branch out somewhat after the fashion of an umbrella frame. Wire brace-rods, connecting the legs and the central staff, give rigidity to the stand. ROYAL CORNWALL POLYTECHNIC SOCIETY. The doors of the above Society were opened for the fifty- first annual exhibition on Tuesday, September 11th, the Right Honourable the Earl of Mount Edgcumbe (presi dent) in the chair, who was supported by Sir John St. Aubyn, Bart., M.P., the Rev. Canon Saltern Rogers, M.A. (ex-president), Rev. Canon Phillpotts, Dr. Barham, Rev. i. Hole, Professor Warrington Smyth, F.R.S., Messrs. R. Fox, T. S. Bolitho, Dr. Jago, F.R.S., Messrs. Alfred Lloyd Fox, Sydney Hodges, W. Brooks, R. N. Werth, F.G.S. (curator), N. Curne, Rev.— Bull, J. Lanyon, J. P. Bennetts, F. W. Mitchell, H. Lilly, and E. Kitto (secretary). In the body of the hall and galleries were Lord Robartes, Major Parkyn (Hon. Sec. Royal Institution of Cornwall), Colonel Tremayne, the Revs. A. H. Malan, J. S. Tyacke, C. Christopherson, and Messrs. W. L. Fox, R. G. Crees- man, E. D. Anderton, E. Bulmore, &c. The whole building was well filled with a very brilliant gathering. The noble earl at one o’clock rose to deliver his presi dential address, and was received with great applause. When it had subsided, he thanked the company for the cordial reception they had given him, and commenced his address by saying that it gave him very great pleasure to be associated with that old Society, the Royal Cornwall Polytechnic, which had for more than the last fifty years endeavoured to encourage the arts and industries of the country ; he had also to congratulate them on the present exhibition. After the special effort made last year to commemorate the J ubilee of the Society, it might not ba unreasonably supposed there (would be something of a reaction felt this year, and rather a falling off in the exhi bition generally ; that, he was happy to tell them, was not the case—certainly not in the most important departments of the exhibition. It was a Polytechnic Exhibition in every sense of the word. There were represented mechanics, ventilation, mining, engineering, pottery, fishing appliances, ornamental art, sculpture, painting (oil and water), and photography, which was a grand success, far surpassing previous years—a success which was due mainly to the exertions of Mr. William Brooks, who had conducted him over the department, and had shown him some of the finest productions he had ever seen. The works of professional photographers were eligible for the prizes in the art union. His Lordship then called attention to Mr. McLeish’s view of Durham Cathedral called “ A Misty Morning on the Wear,” which he considered a wonderful example of happy selection and artistic feeling. Mr. H. P. Robinson and others exhibited some wonderfully good figure group- ing, which showed a great advance in that branch of the art. In instantaneous photography, Messrs. Cobb and Son exhibited some most interesting works of the streets of London, which he was told were taken from the top of an omnibus. Messrs. Johnson Bros., of Henley-on-Thames, exhibited some very interesting pictures of Henley Regatta, which were gems of the photographic art; and the Rev. A. H. Malan, a local clergyman, had some good pictures of express trains going at full speed. On the whole, the dis play in this department was far in advance of all former ones. Mr. Brooks had informed him that next year he in tended to try to induce some of our American brethren to exhibit and compete for the prizes. There was also added to the photographic department a photographic appliance department, which was full of interest. Mr. Geo. Hare, of London, had been awarded the Society’s first silver medal for his excellent new patent camera, which showed many excellent improvements, which he thought would be fully appreciated by photgraphers ; there were also exhibits in another branch, and that was appliances for the magic lantern by Messrs. W. H. Oakley, who exhibited, amongst other things, a double regulating cock which was a great acquisition. The president’s address was followed by speeches from several eminent gentlemen, including Sir John St. Aubyn, Bart, M.P., Professor Warrington Smytb, F.R.S., and several others; after which the exhibition was declared open, and the company then proceeded to view the objects of interest. The photographic department came in for the patronage of the company, for during the remainder of day and evening it was so crowded that there was scarcely any getting in. Several of the pictures soon found purchasers, and there is no doubt that many will go in the