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The photographic news
- Bandzählung
- 27.1883
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- 1883
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- Hochschule für Grafik und Buchkunst Leipzig
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Zeitschrift
The photographic news
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Band
Band 27.1883
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- Titelblatt Titelblatt I
- Register Index III
- Ausgabe No. 1270, January 5, 1883 1
- Ausgabe No. 1271, January 12, 1883 17
- Ausgabe No. 1272, January 19, 1883 33
- Ausgabe No. 1273, January 26, 1883 49
- Ausgabe No. 1274, February 2, 1883 65
- Ausgabe No. 1275, February 9, 1883 81
- Ausgabe No. 1276, February 16, 1883 97
- Ausgabe No. 1277, February 23, 1883 113
- Ausgabe No. 1278, March 2, 1883 129
- Ausgabe No. 1279, March 9, 1883 145
- Ausgabe No. 1280, March 16, 1883 161
- Ausgabe No. 1281, March 22, 1883 177
- Ausgabe No. 1282, March 30, 1883 193
- Ausgabe No. 1283, April 6, 1883 209
- Ausgabe No. 1284, April 13, 1883 225
- Ausgabe No. 1285, April 20, 1883 241
- Ausgabe No. 1286, April 27, 1883 257
- Ausgabe No. 1287, May 4, 1883 273
- Ausgabe No. 1288, May 11, 1883 289
- Ausgabe No. 1289, May 18, 1883 305
- Ausgabe No. 1290, May 25, 1883 321
- Ausgabe No. 1291, June 1, 1883 337
- Ausgabe No. 1292, June 8, 1883 353
- Ausgabe No. 1293, June 15, 1883 369
- Ausgabe No. 1294, June 22, 1883 385
- Ausgabe No. 1295, June 29, 1883 401
- Ausgabe No. 1296, July 6, 1883 417
- Ausgabe No. 1297, July 13, 1883 433
- Ausgabe No. 1298, July 20, 1883 449
- Ausgabe No. 1299, July 27, 1883 465
- Ausgabe No. 1300, August 3, 1883 481
- Ausgabe No. 1301, August 10, 1883 497
- Ausgabe No. 1302, August 17, 1883 513
- Ausgabe No. 1303, August 24, 1883 529
- Ausgabe No. 1304, August 31, 1883 545
- Ausgabe No. 1305, September 7, 1883 561
- Ausgabe No. 1306, September 14, 1883 577
- Ausgabe No. 1307, September 21, 1883 593
- Ausgabe No. 1308, September 28, 1883 609
- Ausgabe No. 1309, October 5, 1883 625
- Ausgabe No. 1310, October 12, 1883 641
- Ausgabe No. 1311, October 19, 1883 657
- Ausgabe No. 1312, October 26, 1883 673
- Ausgabe No. 1313, November 2, 1883 689
- Ausgabe No. 1314, November 9, 1883 705
- Ausgabe No. 1315, November 16, 1883 721
- Ausgabe No. 1316, November 23, 1883 737
- Ausgabe No. 1317, November 30, 1883 753
- Ausgabe No. 1318, December 7, 1883 769
- Ausgabe No. 1319, December 14, 1883 785
- Ausgabe No. 1320, December 21, 1883 801
- Ausgabe No. 1321, December 28, 1883 817
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Band
Band 27.1883
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April 27, 1883.] THE PHOTOGRAPHIC NEWS. 271 set, the coated paper is soaked in an ordinary dipping bath. He left it in the water for twenty-four hours, but Mr. W. Bedford thought five hours would have been sufficient. Mr. Davis had found that in making small quantities of emulsion, say five or six ounces, a gallon stoneware bottle with a flat side (like the ordinary warm water bottle) to be excellent for washing. The emulsion was permitted to set upon the flat surface, and then the bottle filled with water, corked, and rested flat side uppermost. In twenty-four hours the emulsion was completely washed with two or three changes of water. Mr. Ashman had used a Winchester quart as a washing bottle in the same way, but could not get a rapid emulsion by such means. Mr. Bedford, on the subject of re-warming washed emulsion, said, if it was heated, without containing any soluble bromide, green fog inevitably resulted. Mr. W. B. Debenham bore similar testimony. A temperature of 160° to 180° F. in re-warming produced dense fog, beyond the reach of doctoring by bichromate of potash. Mr. Ackland said fog ensued as low as 120°F. Captain Abney exhibited two samples of gelatine in sealed tubes. In both of them fungi had made their appearance, although in No. 1 tube to a more marked degree than in No. 2. Both tubes had been heated to a temperature of 200°F., but No. 1 tube, which showed most fungi, had only been heated once, while No. 2 had received three heatings. The Chairman asked if Captain Abney had examined the fungi of the two tubes under a microscope. Captain Abney had not done so, but had employed a magnifier. Mr. Davis referred to Pasteur’s and Tyndall’s experiments on the development of germs. Mr. Coles exhibited a retouching desk. Mr. Sands exhibited a form of shutter he had recently con structed. It was very simple, merely consisting in drawing down a screen, and allowing it to rise again. In this way the foreground was exposed during the whole time the shutter was open, while the sky only received exposure at the moment the screen was pulled down to its full extent, and before it began to rise again. The meeting was then adjourned till Tuesday, the 8th May. Bolton Photographic Society. The second annual open meeting of this Society was held on Tuesday evening, in the Baths Assembly Room, which was thronged by a large and appreciative gathering of the elite of the town who seemed to thoroughly enjoy the arrangements made for their enjoyment. The exhibits of photographs and photographic apparatus were of the most interesting description, and spoke volumes of the progress made by members of the Society. The principal contributors were Messrs. J. R. Bridson, J. P. (one of the vice-presidents), T. Parkinson, R. Harwood, Councillor J. W. Hawsksworth (secretary), J. C. Sewell J. Ash worth, and John Taylor, and in some cases the work was of the highest cliss. A collection of pictures lent by the Autotype Company, London, was a source of great attraction, the subjects being well chosen, and the delicate finish admirable. Mr. Banks exhibited a number of Hunter and Sand’s cameras with instantaneous shutters of the most ingenious description, and the same gentleman had also on view a small dynamo made at his own works from his own drawings for the purpose of electrical experiments in the Board School Science Classes. The dynamo was used several times during the evening, furnishing electricity for a number of Swan’s incandescent lamps, which were tested with the greatest success. The microscopes, stereoscopes, &c., which were also on view on Mr. Banks’s table, were freely examined, and appeared to afford much pleasure. The musical portion of the programme, which was in the hands of Messrs. Warburton, Houghton, Howarth, and Walls (Mr. G. Halliwell presiding at the piano), was very good, the quartettes, solos, &c., being rendered with taste and precision. Not the least pleasing part of the evening’s proceedings was the exhibition of views which had been taken by the members, and which were thrown on to a large sheet by a pair of dissolv ing view lanterns of great power, a description of each being given by Mr. J. H. Galloway. During an interval in the proceedings the Secretary (Mr. Hawksworth) read the annual report, which showed the Society to be in a flourishing condition. Mr. John Hick, J.P. (the President), then delivered a brief but interesting address on the objects of the Society, and on the progress which had been made by the art since he, in 1842, was elected one of the first members of the first Photographic Society in England. He referred to the elevating character of the art as pursued by amateurs, and contended that it tended to make all its devotees artists in the truest sense of the word. Having spoken of the peculiar opportuneness of each of the great inven tions which during the nineteenth century have given such a stimulus to civilisation, he dealt with the many important uses to which photography was now applied in the various construc tive branches of trade, and concluded by wishing the Society every success, and by hoping that the number of its members would greatly increase. The proceedings terminated with a cordial vote of thanks to the President and all who had assisted in the evening’s enter- taiment, which was carried on the motion of the Rev. R. Best, seconded by the Rev. J. W, Cundey (Head Master of the Bolton Chruch Institute). London and Provincial Photographic Association. At the meeting held on Thursday, the 19th inst., Mr. A. Cowan in the chair, Mr. Henderson exhibited a lamp introduced by Marion and Co. for the developing room ; the glass was flashed with ruby on one side, and yellow on the other. He also showed a cut-glass developing tray from the same firm, the bottom of which was provided with two ridges to prevent the plate adhering. The following questions from the box were then discussed— viz: 1. “Is there anything gained by adding a small quantity of common salt to the last washing water but one before toning prints ? ” 2. “ Is bromide of silver soluble in excess of bromide, and if so, to what extent ? ” 3. " Is anything gained, in such a climate as ours, by fuming sensitized paper before printing ? ” In discussing the first question, Mr. Debenham said he was of opinion that common salt converted the silver into chloride, and also allowed a better chance of judging the colour. Mr. Brown could judge better by looking through. Mr. Henderson thought it better to add the salt to the toning bath, instead of using it separately. Mr. Tully thought a grain of chloride of gold to a sheet of paper too much to use. With reference to the second question, Mr. Henderson said it was the opinion of Mr. Dawson, of Brighton, that he could obtain a very finely-divided bromide of silver by dissolving it in bromide of potassium, and then precipitating by the addition of water ; the bromide of silver was found, from the experiments, to be more soluble in a hot solution than in a cold one. Mr. Tully said he never found any advantage in using ammonia. Mr. Henderson preferred to enlarge from a print on fumed paper, as less grain showed. Mr. Brown thought it best, when copying silver prints, to under-expose in the open air. Mr. Cowan thought a slow gelatine plate gave better trans parencies than wet collodion. Mr. Debenham preferred wet collodion. Manchester Photographic Society. The monthly meeting was held on Thursday, the 12th inst., Mr. John Pollitt in the chair. Mr. A. Brothers said that anyone wishing to make photo graphs of microscopic objects with apparatus not specially con structed for the purpose would require a microscope and a bellows camera with portrait lens, and showed, by asketch on the black board, how the microscope and camera should be arranged. The microscope, object, condensing lens, and light being placed in the usual way, the camera and lens should be arranged on a line with the microscope, the portrait lens being close up to the eyepiece of the microscope, when the object, after careful adjustment, will be seen on the ground glass of the camera, enlarged in proportion to the power of the microscope and the length to which the camera may be drawn out. Allowance must be made in the usual way for the difference between the visual and actinic foci of the object glass, and a very powerful light will be required. He had obtained photographs of the moon with a Barlow lens which gave the image enlarged about one diameter, and this succeeded fairly with the full moon ; but he considered that, owing to the feeble light of the moon, no advantage would be gained by attempting a greater enlargement direct. The case of photographing the sun was different, and pictures had been made on a large scale by M. Janssen, at Minden, in France, with great success.
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