The photographic news

• Bandzählung: 35.1891
• Erscheinungsdatum: 1891
• Sprache: Englisch
• Signatur: F 135
• Vorlage: Hochschule für Grafik und Buchkunst Leipzig
• Digitalisat: Hochschule für Grafik und Buchkunst Leipzig
• Digitalisat: SLUB Dresden
• Rechtehinweis: Public Domain Mark 1.0
• URN: urn:nbn:de:bsz:14-db-id1780948042-189100009
• PURL: http://digital.slub-dresden.de/id1780948042-18910000
• OAI: oai:de:slub-dresden:db:id-1780948042-18910000
• Sammlungen: LDP: Historische Bestände der Hochschule für Grafik und Buchkunst Leipzig
• Sammlungen: Fotografie
• Strukturtyp: Band

• Digitalisat: SLUB Dresden
• Strukturtyp: Ausgabe

mechanical or other means ; then either before the total evaporation of the solvents, or when the said substances are still in a humid, swollen, pitchy, or molten condition, the frames are applied and fixed in the manner above described. After their complete desiccation the frames will retain the film and keep it rigid and smooth. The films thus directly extended are of very small weight and volume ; they can undergo the necessary operations, such as exposure, developing, and fixing, without any more inconvenience for the operator than if glass or prepared plates were used. What I claim is :—The application to photographic films of rigid frames forming one therewith, the said frames being designed to afford supports for the films, and thus render the same rigid and keep them extended during the operations to which they are subjected. Correspondence. THE LONDON AND PROVINCIAL PHOTOGRAPHIC ASSOCIATION. Sir,—Will you kindly allow the committee of the above Association to thank, through the medium of your pages, those ladies and gentlemen who so kindly gave their services, vocal and instrumental, at the very successful entertainment on Tuesday, March 3rd. With reference to the demonstrations on “Colour Polarisation” and the “Lantern Microscope” which were alluded to in an announcement during the evening, they will be given on Thursday evenings during April by Messrs. Debenham, Haddon, Briginshaw, and Fresh water. All interested are invited to attend. The Hon. Sec. L. & P. P. A. The Champion Hotd, Aldersgate Street, London, March 4th. The London and Provincial Photographic Association.— March 12th, lantern night; March 19th, demonstration on “ Gelatino-Chloride Paper,” by Mr. J. Howson ; March 26th, “ High Speed Shutters,” by Mr. A. S. Newman. A Photographic Entertainment.—Last Tuesday night the London and Provincial Photographic Association had a convivial meeting at which about 250 persons were present, and in which songs, recitations, and music were intermixed with popular scientific experiments. Mr. Debenham mixed red and green lights to show that by physiological illusion they would produce a yellow, indistinguishable by the eye from the true yellow of the spectrum. Mr. Briginshaw’s demonstration of certain phenomena of polarised light was warmly received, and Mr. Freshwater and Mr. Wellington lent much apparatus for the production of various optical results exhibited. Among those who took part in the entertainment were Miss Jessie Drage, Miss Rosa Lake, Messrs. E. W. Parfitt, F. A. Bridge, P. Everett, A. Cowan, 0. H. Cooke, J. S. Teape, F. P. Cembrano, jun., J. D. O'Connor, Russell Ward, H. M. Hastings, S. T. Chang, A. S. Newman, and H. D. Atkinson. A Photographic Exhibition in New York.—The Fourth Annual Exhibition of the Photographic Society of Philadelphia, the Boston Camera Club, and the Society of Amateur Photo graphers of New York, open to all photographers—American and foreign—will be held under the auspices of The Society of Amateur Photographers of New York, at the Fifth Avenue Art Galleries, New York, U.S.A., May 25th to June 6th, 1891. The agreement heretofore existing between the New York, Philadelphia, and Boston Societies, to hold annual exhibitions under joint rules and a joint management, was cancelled in October, 1890, and a new agreement adopted whereby exhibi tions are to be held in rotation annually in the respective cities, but under the exclusive management of the local society, and under such regulations and rules as it may adopt. Medals or diplomas will be issued in the name of the society holding the exhibition. The board of directors of the Society of Amateur Photographers in October, 1890, appointed a special committee of arrangements, to select judges, and manage the exhibition to be held in New York, May 25th to June 6th, 1891, inclusive. Aroreedngs of Societies. London and Provincial Photographic Association. February 26th.—Mr. W. H. Harrison in the chair. Presen tations to the library were made by Mr. G. P. Harris. A circular was read from the president of the Toynbee Camera Club, inviting a representative of the Association to attend the forthcoming meeting to be held at the rooms of the Photographic Society of Great Britain. A resolution was passed appointing the Hon. Secretary as a representative of the Association. Mr. A. Cowan showed results with several developers when used with bromide paper—eikonogen and hydrokinone, singly and in varying proportions, in combination with carbonate of lithium. The best results were obtained with the following developer : — Eikonogen ... ... ... ... 4 grains Sulphite ... ... ... ... ... 16 ,, Carb, lithium ... ... ... ... 2 ,, to the ounce. The times of development varied from three to ninety minutes. Mr. A. Haddon exhibited two sealed tubes, one containing eikonogen, water, and air; the other eikonogen dissolved in boil ing water and allowed to cool before sealing. Both tubes were subjected to the temperature of boiling water. The contents of the first-named tube turned black in five minutes. The treat ment in the case of the second tube was continued for three hours without in any way changing the colour of the solution. The Bath Photographic Society. February 25th.—Annual meeting, Mr. W. Pumphrey in the chair. The Rev. C. Reay Pughe was elected a member. The Secretary read the report, in which the committee congratulated the members on the success that has continued to attend the operations of the Society. During the winter months of the year, the meetings of the members have been well and regularly maintained, and many communications of great interest have been made. During the summer months various excursions were arranged and carried out. A list of the places visited, and also of the papers communicated to the Society at its various meetings, was submitted, which have been duly chronicled in these columns from time to time. The report continued : “ Since our last report, the arrangements with the Royal Literary and Scientific Institution, which were then in progress, have been completed, and we have now, in addition to the dark room in the basement of the building, a convenient room for a library, and for meetings of committees, while our ordinary meetings are held in the large lecture room of the Institution. Some addition has been made to the library of the Society, and now that we have a suitable place, we should be glad to receive any contribution of books that may serve to illustrate either the history or the practice of the photographic art. Well-arranged photographs of Bath and its surroundings—a good series of the points of geological interest in the district—incidents in the progress of our city, which would serve as mementoes in the time to come, would be of great value, and ultimately make our library a credit to the city.” The present number of members is eighty-one ; in the course of the year there have been seven resignations and twenty-one elections. The Treasurer’s statement showed that the Society is in a sound financial position. The Chairman, in moving the adoption of the report, said that it was a very satisfactory one. The Photographic Con vention, he said, intended visiting Bath in July, when he hoped a very cordial welcome would be extended to the members of that body. The motion was seconded by Mr. Braham, and accepted. The election of officers then took place, with the result that all who served last year were re-elected. The Chairman announced the forthcoming Exhibition at the Crystal Palace, and spoke upon the good work of the Benevolent Association, prospectuses of which were on the table.