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The photographic news
- Bandzählung
- 15.1871
- Erscheinungsdatum
- 1871
- Sprache
- Englisch
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- F 135
- Vorlage
- Hochschule für Grafik und Buchkunst Leipzig
- Digitalisat
- Hochschule für Grafik und Buchkunst Leipzig
- Digitalisat
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- Public Domain Mark 1.0
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- urn:nbn:de:bsz:14-db-id1780948042-187100002
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- http://digital.slub-dresden.de/id1780948042-18710000
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- Sammlungen
- Fotografie
- LDP: Historische Bestände der Hochschule für Grafik und Buchkunst Leipzig
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- Parlamentsperiode
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- Bandzählung
- No. 659, April 21, 1871
- Digitalisat
- SLUB Dresden
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Zeitschrift
The photographic news
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Band
Band 15.1871
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- Titelblatt Titelblatt I
- Sonstiges Preface III
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- Register Index 619
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Band
Band 15.1871
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- Titel
- The photographic news
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APRIL 21, 1871.] THE PHOTOGRAPHIC NEWS. 191 KEEPING QUALITIES OF DRY PLATES. Dear Sib,—Having seen many queries as to the keeping properties of various dry plates, I venture to give you my ex perience in the matter. • I have found coffee plates keep well and tolerably sensitive. For instance, on tho 31st March I exposed a plato which I prepared in May last year, thirty seconds, with a pair of Dall- meyer’s rapid landscape lenses, second size, rotating stop, in sunlight, and obtained a fair negative. I developed as fol lows First, a wash ot plain solution of carbonate of ammonia ; then plain pyro and ammonia, till all details were well out; and intensified with ordinary citro silver and pyro. A tea-plate prepared in October last was exposed the same day, and for the same time, with the same development, and also gave a good negative. I have tried coffee and gum, and like the plates much. I find them quite as sensitive as the ordinary collodio-bromide plates. They are a little more trouble to prepare, as are all plates where the silver bath is used ; but one is not tied down to a certain kind of pyroxyline or collodion and bath, which is an advantage to amateurs who, like myself, live in a place where the neces sary materials for the collodio-bromide processes are not readily procured. The keeping qualities of the coffee and gum plates I have not, of course, yet tried ; but I see no reason why they should not keep their sensitiveness quite as well for long periods as plain coffee.—I am, sir, yours faithfully, John B. C. Fox, Lutterworth, April l^th. ALBUMS FOR NEW STYLES. Sib,—In last week’s PIOTOGRAPHIC News we notice two letters respecting albums for tho Victoria cards. The writer who signs himself “Middlesex” seems to imagine that they are not obtainable. We hero beg to assure him that wo shall be able to supply them to him, or to any others, and at the reasonable price of 7s. each. We must, however, at the pre sent, ask a little indulgence as to time for the execution of an order. Mr. F. A. Bridges, in his letter, suggested a special album for tho portraits of deceased friends. We have pleasure in informing him such an album has been made by us six months ago, and is now kept regularly in stock. We wish to make a little observation for the benefit of those gentlemen who declaim against the want of energy on tho part of dealers and manufacturers, in introducing and making articles suitable for novelties. Tho fact is, it is so much the interest of tho dealer to introduce novelties, that if he were not checked by the evil consequences of failure, a loss to himself and to his customers, we should seo novelties out every week, and pushed by tho various houses of business, till photographers Would be sick at the sight of anything now. With regard to the Victoria card, iu our opinion, it is a size that approaches too close both to the cabinet and carte-de-visite ; consequently there will be, in reality, no extra business from it; any orders received will be so much from the carte or cabinet; we, therefore, determined to hold back and wait. By this wo mean, we would wait for the demand, not seek to create it. We shall, of course, be most happy to execute any orders we may be favoured with, both for tho Victoria cards or albums. The cameo-vignette portraits will show that wo are quite ready to introduce and make known a novelty. This style, according to our judgment, will prove a great success, and, conse quently, give a large increase of business to photographers, as well as to the man of business.—Yours truly, Soho Square, London, April VAh. MRION AND Co. Aroceedings of Societies. MANCIESTER PIOTOGRAPHIC Society. The ordinary monthly meeting was held at tho Memorial Hall, on Thursday evening, the 18th inst., Mr. Noton, V.P., in the chair. After the routine business had concluded, Mr. WARBUNrOX exhibited a pair of Mr. Edwards’s combina tion printing-frames, which attracted much attention. A long talk followed on albumen, and the various modes of its employment in photographic practice. Nothing new was elicited. Tho subject of summer out-door meetings came up for on. sideration, and met with a very discouraging reception. It was ultimately decided to leave members to arrange photographic trips among themselves. The Chairman made some remarks on the albumen process on glass, commending it for the beauty of the results obtained by it, and promised to read a paper on the subject at the next monthly meeting. The meeting, which was only moderately attended, was then adjourned. 0. Adin, Hon. Secretary. South London PIrOTOGRAPHIC Society. The usual monthly meeting of this Society was held in the City of London College on the evening of Thursday, the 13th inst., Mr. Sebastian Davis in the chair. The minutes of a previous meeting having been read and confirmed, Mr. B. J. Edwards road a paper on working the wet collo dion process without a dark room or tent (see p. 186). After reading the paper, Mr. Edwards exhibited his new “ Grapho- genic ” apparatus for working wet plates in daylight; and, in the course of tho evening, showed its working by producing a negative with the aid of the magnesium light, Mr. Solomon’s lamp, under the charge of Mr. Walter Paul, being employed. After some conversation, Mr. Foxlee asked Mr. Edwards what part was played by the sulphate of copper in the developing solution he used. Mr. Edwards found it checked the tendency to ready oxida- tion of the iron solution, and was, therefore, of great value in a concentrated solution to be kept ready for use. Mr. HENDERSOX had found that camphor had a similar action. Mr. Edwards said that as camphor was very sparingly soluble in water, it would scarcely bo available in the stock concentrated solution. He found the plan of using a concen trated solution, diluting it as required, very valuable. Some times he used the solution with scarcely any dilution, and had, in such cases, obtained a negative of a baby with half a second’s exposure. Mr. FoxLEK had found that a silver solution kept in a bath lined with pure india-rubber was spoiled in a few weeks. Mr. Edwards said the solution need never be kept in his bath more than a few hours ; and, owing to the small quantity necessary for covering tho plate, fresh solution was constantly required. He had known pure india-rubber become much con taminated with sulphur by lying in contact with vulcanized india-rubber in a warehouse. Mr. Wharton Simpson had used an india-rubber lined bath for some years for landscape work without inconvenience, but the solution was always removed from tho bath at the end of the day’s work. Mr. Howard had used india-rubber constantly for the water tight top of his bath without injury. After some further conversation on the facility for watching development through the two non-actinic glasses, on the shel lac varnish for lining the silver bath, and a vote of thanks proposed in some eulogistic remarks from the Chairman, the subject dropped. Mr. Foxlee then read a paper on small negatives for en largements (see p. 187), and exhibited some negatives. After some conversation on the superiority of pyrogallic acid for giving negatives in which the texture is amorphous, and free from texture, deriving its non-actinic character from its colour rather than thickness of deposit, and a vote of thanks, the subject dropped. The Chairman reminded the meeting that the May meet ing would be devoted to the exhibition of photographs, which members were invited to contribute, and to conversation thereon. The proceedings then terminated. — — @alk in the Studio. Art Photographs from Combined Negatives.—We have recently been favoured by Mr. Adam Diston, of Leven, Fife, with some further examples of genre photography printed from combined negatives, tho plan of combining tho negatives being that of Mr. Johnstone, of Wick. One is entitled, “Tho Smithy,” and is an admirable rendering of the familiar interior of village smithy, with its forge, anvil, and medley collection of all kinds of implements and fragments of implements in irons, tongs, chains, horse shoes, and similar matters. The
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