The photographic news

• Bandzählung: 29.1885
• Erscheinungsdatum: 1885
• 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-id1780948042-188500006
• PURL: http://digital.slub-dresden.de/id1780948042-18850000
• OAI: oai:de:slub-dresden:db:id-1780948042-18850000
• Sammlungen: LDP: Historische Bestände der Hochschule für Grafik und Buchkunst Leipzig
• Sammlungen: Fotografie
• Bemerkung: Seite I-II fehlen in der Vorlage. Paginierfehler: Seite 160 als Seite 144 gezählt.
• Strukturtyp: Band

• Digitalisat: SLUB Dresden
• Strukturtyp: Ausgabe

October 9, 1885.] two bad received a normal exposure, which was increased eight times with the other plate, and showed but little difference to the others. The Chairman advocated using, when in doubt as to exposure, a pilot developer strongly restrained. One of the plates had been left in a strong restrained solution; no image appearing, the developer was thrown off, the plate washed, and a normal developer used. The strength of the restrainer had no effect upon the latent image. W. K. Burton said even if a plate was immersed previously in a bromide solution alone, it would have no effect on the latent image or prevent the ordinary development. A question arising as to the keeping qualities of gelatine films, W. E. DEBIXTIAN said he had with him a packet of unwashed chloride plates, which he handed to the Chairman. They had been put by for about two years, and were all more or less marked and stained ; the top plate of the parcel, which was face upwards, being especially marked. They had been packed with pieces of yellow paper between, not quite covering the whole of the plates, the markings in addition taking the shape of the paper. This, Mr. Debenham was of opinion, might be caused either by a chemical action, or deterioration by contact. A. L. Henderson had packed a parcel of plates some ten or twelve weeks since. They were placed back to back, with a narrow strip of tinfoil separating the films at the edges. These plates showed no sign whatever of the pressure of the tinfoil. He was of opinion that either lead or tinfoil might be used in packing plates without any fear of marking. W. H. Harrison said that once the late C. F. Varley, Charles Blackburn (of Manchester), and himself, tried to photograph the alleged flames from magnets described in the books of Baron Von Reichenbach, but could obtain no evidence of the existence of the asserted emanations, although the experiments extended over a few months, and most powerful magnets, as well as weak ones, were employed. Glycerine plates by Blanchard’s process were used. At -J inch above the poles, with one hour’s exposure in total darkness, images of the poles appeared on the plates after development; but dummy wooden poles gave the same result, the effect being due to somewhat checked evaporation. Hence, when a plate was not bone dry, slightly checked evapora tion from its surface—due to paper or other solids near it— might produce a developable image. A question from the box was read. “ Does amber, shellac, or copal resist water most in a varnished film ?” The Chairman thought copal, but it was so sparingly soluble. A. Haddon said if camphor was added to the alcohol, and the copal powdered, it would more readily dissolve. J. Barker preferred button lac ; he had coated wooden dishes with copal varnish, but it peeled off in a fortnight. Several other members were in favour of shellac. A. L. Henderson preferred collodion and varnish in the pro portion of 1 part of collodion to 2 parts of varnish, thinned with ether; it dried slighly matt, but he considered it a very fine varnish. Glasgow PHOTOGRAPHIC Association. The opening meeting of the session was held in the Philosophical Society’s Rooms, 207, Bath Street, on Thursday evening, 1st of October, the President (Wm. Lang, jun.) in the chair. There was a good attendance of members. After the preliminary business of reading the minutes, &e., had been gone through, the President delivered his inaugural address (see page 650). Mr. Dodd (Vice-president), in proposing a vote of thanks to the President, spoke of the deserved tribute that had been paid by him to the late W. B. Woodbury, and urged upon all present to be more enthusiastic in trying to further the interests of the Society. Mr. Urie, in seconding the vote of thanks, hoped the excellent and interesting address would have the effect of giving a stimulus to the Association, and that we might have many such papers during the session. Mr. Parker congratulated the Society on the change they had made in securing such suitable rooms for the meetings. Specimens of Warnerke's double-coated tissue and the East man film negatives were shown and greatly admired. Mr. Armstrong showed and described the Eastman Roller Slide, and also a very ingenious and simple printing frame known as Durnford’s patent. A discussion on these exhibits took place, after which votes of thanks were given to Messrs. Warnerke and the Eastman Film Company, for so kindly sending specimens of their manufactures, and to Mr. Armstrong for bringing the apparatus and so fully and clearly explaining it. The Chairman passed round a silver print to show the picture he intended to have done by Stannotype process as a presenta tion print to the Society. A book of the architecture of “ Old Glasgow,” illustrated by the photo-gravure engraving process, and sent by Messrs. Annan, lay on the table along with some early specimens of the Talbot- type process, and at the close of the meeting the members had an opportunity of examining them. Dundee and East of Scotland Photographic Association. The first meeting for the session was held in Lamb’s Hotel, on Thursday, 1st October, D. Ireland, Vice-president, in the chair. The Chairman referred to the various advances made in photo graphy during the past year, drawing special attention to the Eastman process of film photography, recently introduced. Men tion was also made of the International Exhibition to be held in Dundee in February, under the auspices of this Society ; and the speaker said that, judging from the amount of support pro mised, it was sure to be a great success ; he hoped the members of the Association would be well represented. G. D. MACDOUGALD F.I.C., then gave a most interesting lec ture on “The Latent Image, in an Unexposed and Undeveloped State. Of what does it Consist ? ” (see page 651) which he illustrated by experiments, and which was listened to with great attention. A negative on the Eastman paper was handed round and examined with much interest, and a print from it was also shown. It was thought the results thus obtained were in no way inferior to those got by the use of glass plates. A sample of the compressed pyrogallic acid introduced by Marion and Co. was laid on the table, and thought to be a great improvement upon the old form. Sheffield Photographic Society. The annual meeting of the Sheffield Photographic Society was held October 6th, in the Freemasons’ Hall, Surrey Street. After the usual supper, to which a number of members sat down, the business of the meeting was commenced, W. B. Hatfield pre siding. Mr. Yeomans, the treasurer, presented his accounts, which showed a balance in favour of the Society, which is in a very flourishing condition, the members numbering over 60. The following officers were re-elected :— President—W. B. Hatfield. Vice-Presidents—Dr. T. H. Morton and T. Firth. Treasurer—Mr. Yeomans. Secretary—J. Taylor. Committee—Messrs. Bacon, Turner, Platts, and Pearce. Dr. Morton proposed “ That an exhibition of members’ work and a conversazione should be held at an early date.” This was carried unanimously. The President then distributed the prizes to those who had been successful in the competitions during the year. In the specimens of work some excellent prints were shown by Mr. Pearce, Dr. Morton, Mr. Taylor, and others. The following new members were enrolled Walter Tysak, W. E. Nicholson, Bradley Nowell, and J. S. Nowell. The monthly meeting was afterwards held, and the prize for village scenes was awarded to J. Taylor. Ualh in the Studio. Royal Cornwall Polytechnic Society’s Exhibition, 1885. —In the Judges’ report which appeared last week the following was omitted:—Amateur Section. -“Frame No. 898 of instan taneous pictures, by Mr. C. Preston, of Birmingham, are little gems in their way, being soft and delicate, and show careful manipulation and artistic taste.” The Antwerp Exhibition.—The following French firms have received awards :—Diploma—Braun, Nadar. Gold Medals— Chalot, Fleury-Hermangis, Petit, Quinzac, Saint-Senoch. Silver Medals—JtMovA-Tailev et Clayton, Audouin, Gilles fibres, Haute-