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The photographic news
- Bandzählung
- 35.1891
- Erscheinungsdatum
- 1891
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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. 1712, June 26, 1891
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The photographic news
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4G8 THE PHOTOGRAPHIC NEWS. [June 26, 1891. QPatent Intellgence. Applications for Letters Patent. 10,101. John Joly, 39, Waterloo Road, Dublin, “Improved Method of Obtaining Solar Altitudes by the Aid of Instan- taneous Photography.”—June 15th. 10,139. Richard Moser, 4, South Street, Finsbury, London, “ Improvements in Photographic Albums.”—June 15th. 10,241. George Lyons, 19, Somerset Street, Portman Square, London, “ Improvements in Portable Photographic Cameras and Camera Fronts.”—June 16th. 10,245. Joseph Robert Mally, 18, Fulham Place, Paddington, London, “ Improvements in and relating to Frames for Sup porting and Exhibiting Photographs, Views, and the like.”— June 16th. 10,246. Joseph Robert Mally, 18, Fulham Place, Paddington, London, “Improvements in and relating to Wall Brackets, for Supporting and Exhibiting Photographs, Views, Figures, and the like.”—June 16th. 10,278. Etibnnb Ricard and Jean Baptist Joseph Lacroix, 323, High Holborn, London, “ Improvements in Photo graphic and Stereoscopic. Apparatus.” (Date applied for under Patents Act, 1883, Sec. 103, January 8th, 1891, being date of application in France.)—June 16th. 10,379. Frank Sternberg, Hillside Cottage, Bushey, Herts, “An Improved Method of Embellishing Photographs.”— June 18th. 10,482. John Alexander Forret and Frederick Dundas Todd, 26, Brougham Place, Edinburgh, “Improvements in Means or Apparatus for Producing a Flash Light more espe cially Applicable to Photography and Stage Effects.”—June 20th. 10,506. Edward James Clifford, 127, Upper Dorset Street, Dublin, “ A Hand or Detective Camera and Shutter.”— June 20 th. Specifications Published. 985. January 20th, 1890. — “Pigment.” H. Grimshaw, Canal Chemical Works, Clayton, Manchester. A white pigment, consisting of an insoluble zinc compound, is prepared by dissolving metallic zinc, or zinc oxide, in a solu tion of zinc chloride by the aid of heat, and then precipi tating the pigment by cooling, with or without the addition of an alkali. Another process consists in mixing zinc oxide with zinc chloride solution, producing a mixture which sets hard, and may be ground to a powder. 1,015. January 20th, 1890. — “Alkali Manufacture.” F. ELLERSHAUSEN, Hebburn-on-Tyne, Durham. Relates to the manufacture of caustic soda and potash. Sodium sulphide solution is treated with sodium ferrite (fer rate), either by simply stirring up the latter in the solution, or preferably by forming a layer of the ferrite in a granular form about four feet deep, and filtering the solution through it. The reaction which takes place may be expressed as follows : — Fe,0,Na,0 + 4H 2 O + 4Na 2 S = Fe„Na,S + 8NaOH. The caustic soda is obtained as the filtrate, while the double sulphide in the filter bed may be treated in any way. The ferrite in the granular form is obtained by roasting a mixture of sodium carbonate and peroxide of iron. Caustic potash is similarly obtained. 1,016. January 20th, 1890.— “Alkali Manufacture.” F. ELLERSHAUSEN, Hebburn-on-Tyne, Durham. Relates to a process for the manufacture of caustic soda and potash, consisting of two stages :— 1. Prepariny ferrite (ferrate).—This is prepared by mixing a strong solution of black ash or potassium carbonate with pow dered iron peroxide to form a thick, pasty mass, which is then calcined in a furnace, forming the ferrite. Richmond Camera Club.—An excursion to Shepperton was arranged for the 13th inst. The three members who put in an appearance found some excellent subjects in the neighbourhood. The ordinary meeting was held on Friday, the 19 th, Mr. Davis in the chair, when the subject for discussion was “Tourist Kits.” Corresponence. THE CAMERA CLUB. Sir,—Will you kindly allow me to state that the exhibition of photographs by the Marquis Dr. Vianna de Luna and the Countess Loredana da Porto Bonin, which was announced to be opened at the Camera Club on Tuesday, June 25th, is unavoid ably postponed. The exhibition will commence on Thursday, July 16th, after which date the pictures will be open to inspection by visitors under the usual conditions, namely, from 10 a.m. to 4 p.m., on production of tickets which may be obtained from the hon. secretary and from members generally. G. Davison, Hon. Sec. The Camera CM, Charing Cross Road, W.C., June 20th. GLASGOW INTERNATIONAL EXHIBITION. Sir,—I have pleasure in announcing that the following gen tlemen have kindly consented to act as judges at the exhibi tion (there are three photographers and two painters), namely, Messrs. Valentine Blanchard, Adam Diston, Richard Keene, Francis Powell (Pres. R.S.W.), and William Young (R.S.W.) I hope shortly to name two gentlemen, with a special know ledge of photo-mechanical work, who will assist the others in that section. There is a slight error in our prospectus, which may lead to some misunderstanding. In the clauses at the head of the list of classes, “Class 24 (Scientific) may be &c.,” should read “Class 25 (Scientific) may be, &c.” I beg to confirm the arrangement already announced by the Cardiff executive, whereby pictures entered for both exhi bitions can be sent on here, carriage paid. Wm. Goodwin, Hon. Sec. 3, T^ynedoch Street, Glasgow, June lUth. "NOTES ON PERSPECTIVE DRAWING AND VISION." Sir,—The dovecotes of Charing Cross Road have been fluttered ; there is no use denying the fact. The god of art (lately arisen) has repudiated his prophets, trumpeting their falseness, denying them fire ; and the worst feature of the whole matter is that this perverse deity is undoubtedly clever, which the prophets are not. Le bite de bon Dicu on their tongues, dismay in their hearts. This is the state of affairs when the last thunderbolt is still poised. ‘ ‘ The deathblow to all the artistic pretensions of photo graphy,” is entitled “Notes on Perspective Drawing and Vision,” by Dr. P. H. Emerson and T. F. Goodall. The share that each has had in the work is, perhaps advisedly, left vague, and a pleasing sense of irresponsibility must fill the breasts of both gentlemen. It is priced at sixpence—surely a moderate figure for such sensational research—and contains six and a half pages of matter divided into preface, propositions, proofs, and deductions. If what is said in it be true, the “ amateur-trade ” will be busy repainting their signboards. I write this to save them premature expense in investing in a paint pot. In the end we all have their interests at heart, for without them it would be like unto a world without Pears’ soap. Such is the value of advertisement ! Having thus duly set forth my charitable disposition, and explained this intrusion, I desire to disclaim any attempt to offend the authors of this “ bolt from the blue.” I propose now to run through these six and a half pages, making a few simple comments, and asking several common-sense questions. “ Proposition A ” strikes the keynote of the argument by stating that we see objects on a larger scale with that portion of the eye (the upper portion) which perceives distance, than with that portion which views foreground (the lower portion) ; and that, on the other hand, the lower portion of the eye sees a larger arc than the upper. I would ask whether physiology bears this out ? I cannot test my field of vision by lying on my back, as I am at present in London, and there is hardly any other body of men on the face of the earth more unscientific and unsympa thetic than the metropolitan police. I have also been unable
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