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The photographic news
- Bandzählung
- 27.1883
- Erscheinungsdatum
- 1883
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- Englisch
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- Hochschule für Grafik und Buchkunst Leipzig
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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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FEBRUARY 23, 1883.] THE PHOTOGRAPHIC NEWS. To prepare the iodide of starch solution, about twenty grains of starch are mixed with a few drops of cold water, after which a teacupful of boiling water is poured in, so as to break up the grains and form a very dilute starch paste; when this is quite- cold,- tincture of iodine is stirred in, not more than one drop being added at a time, until an intensely blue liquid is obtained. A little of this is next diluted, until the blue shade is only just perceptible, when a teaspoonful is placed in a white saucer; and if a solution containing as small a quantity as one-hundredth of a grain of hyposulphite is added to the liquid in the saucer, the blue colour will disappear. To test the pro gress of the washing, place the plate in a level position with the film upwards, and pour as much water on the film as it will retain without overflowing. After this water has remained on the film for ten minutes, it is poured off into the saucer containing about a teaspoonful of the dilute iodide of starch solution. If decolourising takes place, hyposulphite is certainly present; but if no decolourisa- tion occurs, there is either very little or no hyposulphite present. Even in this latter case, one short additional washing should be resorted to, in order to make all safe. When the fixing solution is used as freely as we now recommend, the economy of precipitating the silver from even the first fixing bath becomes doubtful; but the primary object of the photographer is to produce good, permanent, and reliable work ; while the mere waste of the silver dissolved out in fixing, becomes a very small matter when considered in relation to the main question. PHOTOGRAPHY AND MAP-MAKING. We are wont to take a good deal of credit to ourselves for keeping in the van of photographic progress. There is no improvement or modification of importance brought to light on the Continent or in America that escapes our attention, and little time is allowed to elapse before such improvement or modification is practically tested in our hands. But we are not always so ready to make applica tion of these benefits, and an illustration of this is afforded by the limited use to which photography is now-a-days put in map-making. We suppose it is our insular position and naturally con servative disposition that causes us to stick so long to old prejudices. We are well-to-do as a nation, and spend more, in proportion, upon our Government establishments than do other countries, and, possibly, this is one reason the more why we do not hurriedly forsake old ways and turn to those that are more economical and expeditious. There are not only as ready inventors in this country as elsewhere, but, what is more, Great Britain is universally known as the best market for patents; yet, while our War Office is one of the most liberal of our spending departments, we had the strange anomaly, it may be remembered, some years ago, of a poor country like Prussia being supplied with breech-loading fire-arms at a time actually when we were engaged at war with Russia, and ought to have had these superior weapons at any price. A not less surprising state of things is that of map making at the present moment. Austria, a needy nation, is producing ordnance maps better and far more quickly than we, who have a purse of unlimited length at our dis posal. It is computed, indeed, that the Imperial Geo graphical Institute at Vienna can manufacture maps ten times as quickly as we can ; and while we shall have to wait, so parliamentary reports tell us, at least another twenty years before the Ordnance Survey of the United Kingdom is complete, the Austrians, with a far wider domain, expect to finish within three or four years. Far be it from us to undervalue the great work which has been accomplished by our Ordnance Survey Office at Southampton. Photography is employed largely at that establishment since it was first introduced under the direction of Colonel Sir Henry James some time in 1855. Our readers will remember that, in one of our early “ At Home ” articles, we gave an account of a visit to that establishment, and explained the way in which the camera is made to assist in the work of map-making. But South ampton still gives employment to a large number of engravers, for we still engrave most of our original maps, and it is, generally speaking, only when it comes to making reproductions of the original that photography is employed in all its entirety. We have said that Sir H. James introduced photographic work in the year 1855, and this fact bears out the remark we made at the commencement of this article. In this country we are always on the alert for novelty and im provement, but, when we have them, we are slow to take advantage of their value. So it has been with the pro cess first known in this country as Sir H. James’ photo- zincographic process, albeit there were many other methods brought forward contemporaneously, which were not less practical. In fact, speaking without prejudice, at this distance of time, good and useful as was the original photo-zincographic process brought forward under the auspices of the late Colonel James, it cannot be denied he was a most fortunate man. The honour of knighthood, and a large sum of money, fell to his lot, in return for having given his process to the country; yet it has puzzled many a skilled photographer and skilled litho grapher to work the process practically on the lines given in his early manuals on the subject. The directions were anything but complete, and although we freely admit that the process was worked most perfectly by the staff at Southampton, it was not until information was supplied in addition to that in Colonel James’ manuals, that a practical method of photo-zincography or photo-lithography was in the hands of the public. We must not, in fact, now that we have mentioned the name of Sir H. James, ignore that of Mr. W. Osborne, who worked quite independently of the Southampton director, and whose results were in no way inferior. To Colonel A. de Courcy Scott, till recently the execu tive officer at Southamption, must be given a large share of the credit that attaches to the perfect working of photo zincography at the Ordnance Survey Office, and to him we owe in the main the very beautiful reproductions of the Doomsday Book, and other earlier illustrations of the pro cess. Still, thoroughly as they understand the application of photography to mechanical printing at Southampton, there is not the same important use made of the art as by the Austrian geographers. A large staff of engravers are still employed on the costly and tedious operation of preparing engraved plates, and the consequence is that both time and money are expended upon an operation which could be done in the main more correctly, and, of course, more expeditiously, with the aid of the camera. We do not say that engraving by hand has not its advantages; possibly the work is more delicate and more even, although, with the improvements of late introduced at Vienna, we hesitate in saying even this much. Engraved lines examined with a magnifier are usually sharper and more continuous; but this superiority, when it exists, is one that should not be purchased at too great a cost, especially as photography has counter-advantages which may be well said to balance the processes once more. Of the arrangements at the Imperial Geographical Institute our readers are also familiar. In recent issues of the Photographic News we have described the modus operandi of Major Volkmer, who has charge of the photo graphic department, and in the Year-Book of 1883 is a pictorial illustration of the copying camera and lighting arrangements in Vienna. In fact, those who desire to have information on the subject of copying designs and maps can do no better than study the excellent arrangement of
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