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The photographic news
- Bandzählung
- 6.1862
- Erscheinungsdatum
- 1862
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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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- Bandzählung
- No. 180, February 14, 1862
- Digitalisat
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Zeitschrift
The photographic news
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Band 6.1862
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- Register Index 619
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Band
Band 6.1862
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Feb. 14, 1862.] THE PHOTOGRAPHIC NEWS. 83 ments, and results, for the public benefit, and it would be contrary to rule, in such a case, to give a privilege, not only to the inventor himself, but to all those who profit, or have profited by his discovery. Seeing, that from these con siderations, the reproduction of subjects obtained by pho tography does not constitute the offence of counterfeit or piracy, provided for and punished by articles 425 and fol lowing, of the Penal Code, an action for damages cannot be sustained. " For these reasons the prisoners are acquitted, the seizure of their photographic copies is void, and the prosecutors are condemned, in costs.” 'this decision may seem hard, and henceforth we must not, I suppose, say much about artistic pkotograpTiy. By a new method of weaving discovered by M. Voisin, he is able to produce shawls in every respect equal to the famous Cashmere, and at about one-eighth of their cost. It would be difficult to explain in what this discovery consists, without going into details of the manufacture of shawls; but, in brief, it may be described as a new method of interlacing the threads, resulting in a very durable product, economy of ma terial, and the employment of any number of colours. This discovery must not be looked upon in the light of an experi ment, for no less than 1,650 shawls have been made on the new plan, and worth 350,000 francs, equal in quality and appearance to Cashmere, valued at 1,250,000 francs. We may expect to see in the forthcoming exhibition, not only specimens of these shawls, but of other new fabrics produced by the machine of M. Voisin. DRY COLLODION WITHOUT PRESERVATIVE. Dear Sir I am induced once more to address you on the subject of Dry Plates without Preservative, in conse quence of the appearance of Mr. Hislop's letter in the News of last week, wherein he says—“ you have inadvertently fallen into an error, in stating that I invariably use albumen as a foundation.” At which, I must confess, 1 am somewhat surprised as I, in common with yourself, and no doubt many of your readers, understood that it was Mr. Hislop’s invariable practice to coat his plates first with albumen, and thereby placing the preservative under instead of over the collodion. By referring to your report of the North London Society’s meeting, page 572, vol. v., Mr. Hislop’s paper was there read by Mr. Martin, who, in answer to a question from the chair man said, “ That the film had a tendency to leave the glass, and that Mr. Hislop, therefore, always coated the plate with a very dilute solution of albumen, prior to applying the collodion.” Mr. Hislop also gives in his paper the formula for the albumen solution, to be used as a foundation for the collodion, and at page 604 of the News, Mr. Hislop, in making some observations at the North London Society’s meeting upon the discussion that had previously taken place at the reading of his paper, exhibited his bath solution, to prove that the albumen had no deteriorating effect upon the bath, in which he says, “ Some hundreds of plates had been excited, and fully nineteen-twentieths of these had been excited, since it was his custom to coat with albumen.” Also, exhibiting pictures from two negatives, he says, "One was upon albumenized glass, in his usual way; the other upon unprepared glass.” ... This is the only instance that I can discover wherein Mr. M8loP makes mention of collodion upon the unprepared E ass, and that appears to have been an experimental plate, or ic purpose of showing the society the non-chemical e1e81 of the albumen, rather than as a proof that the col lodion was in itself sufficient to produce the picture. 114 to acknowledge the thanks which Mr. Hislop in his 16 c ’ 0 last week, tenders to myself, in common with others °y-tI, correspondents, for our corroborative testi- mony: st mUst confess I imagined I was in my process going rne HP farther towards simplicity of manipulation than Mr 1P had then done, which induced me to forward 0 j 56 , sir, the specimens you did me the honour to mention so favourably in your article a few weeks since, and which- I flattered myself would be sufficient to show that with a suitable collodion, a preservative either under or over the film was entirely unnecessary.—I remain, dear sir, your’s respectfully, J. F. Ward. Stratford on Avon. THE EXHIBITION OF THE PHOTOGRAPHIC SOCIETY OF SCOTLAND. Sir,—Surely those who undertake the duty of publishing opinions for the guidance of others, cannot be too scrupulous and careful. The writer of the article in last week’s News,* upon the “ Exhibition of the Photographic Society of Scot land,” has in his “ hasty notice," the result of a "partially made inspection,” not treated me with justice. I do not ask him for praise, but simply for a certain measure of accuracy in his report. He is no doubt entitled “ not to like my last season’s pictures so well as my Endsleigh series,” or, on their merits, to say anything else he pleases. Opinions vary, and it is gratifying to me to find that your own opinion, as ex pressed in your foot note to the article in question, is in direct opposition to his. This, however, is not my point, though I cannot help saying that the “ Scotch Peasant’s Cottage ” he finds so much fault with, and which I believe is a “ ready made picture,” has received the most unqualified praise, and is ranked as a subject the very reverse of “ being incapable of photographic treatment.” What I complain of is the inaccuracy of his description of my pictures. Speak ing of the subject mentioned above, he says, “ It is a flat and almost windowless Scotch cottage, fronting a dirty road, and garnished by only a peat stack or something worse.” He then says that “ several of my efforts have this year been wasted on subjects of this kind, incapable of photographic treatment; and congratulates me upon escaping from these, or from comparatively formal ploughed fields and fla dis- tances.” My answer is, that with the definition I aim at. and believe have a right to take credit for, photograp sufficiently capable of delineating texture and form to . . > beyond question that the “ windowless cottage ” did not far ■ a dirty road, and that it is not garnished by a peat stack or something worse; the latter remark being an imput tion upon my taste I need not, I am sure, notice. Further, so far from “ wasting my efforts ” upon several such subjects, it is the only one of the kind I have done; and in spite of the af writer’s condemnation I will add, that I did it not only be cause I was struck with its picturesque effect, but I conceived it would make a very suitable companion picture to • “ English Mansion ” I had photographed. As to my "formal . j ploughed fields,” they, along with the dirty road and “some- ; thing else,” are simply in the imagination of the writer, who I so described them, not in any one of my photographs. Your leaders will decide whether it is just and fair to publish a “ hasty notice ” written after an “ inspection only partially made.” Should the word partially be ret. I in another sense ? VERNOX Hr.Eu. A9hotographic Hairs and (Queries. Iodide of Silver I Collodion. Sir,—I find the addition of a few drops of solution of iodide of silver will greatly increase the rapidity of the collodion, which seems to get more sensitive the longer it is kept. I pe pare the solution of iodide of silver by rubbing down in a i orter a few grains of nitrate of silver, and adding a saturated solu tion of iodide of potassium drop by drop, till all the pre ipitate is dissolved.—I remain, sir, yours’respectfully, A. L. H. ’ [The early formulas for the preparation of collodion generally j contained iodide of silver, and many photographers believed that greater sensitiveness was obtained by its aid. 1: wo ve gradual conviction appeared to gain ground that it was unne cessary, and it fell into disuse. Possibly, in connection with the other formul and manipulation now in use, it may Lo founi advantageous.—Ed.] * from the Society's Journal.
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