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either may be produced. But no one knows better than Mr. Sutton that flat, veiled, grey negatives are produced by pyrogallic acid development if impure chemicals arc used, especially in the silver bath ; and that these characteristics are not confined to iron development. The negatives described as “ flat, fogged, and grey,” when produced by iron development are by far the worst negatives in existence, for they are generally thin as well, and are useless for pro ducing brilliant prints. A pyro developed negative, even when fogged and grey, has generally sufficient thickness of deposit to allow by skilful printing, of moderately good pictures being produced from it; but with iron develop ment, such a negative is hoplessly bad. But the truth is that good iron negatives have none of these characteristics. Greyness is unnecessary, and fog is fatal. If Mr. Sutton will examine the iron negatives of any successful professional photographer, he will find all the characteristics he loves to see, and which we have seen in many of his own pyro negatives. We recently had an opportunity of examining some of Mr. Vernon Heath’s landscape negatives on 12 by 10 plates, produced by iron development and bromo-iodized collodion. They were amongst the most perfect we have ever seen; with a fine bloom by reflected light, and a rich red smoke colour by transmitted light; no traces of fog, but with points of bare glass in the deep shadows, presenting a certain amount of positive character when examined by reflected light. The sole difference betwixt these and pyrogallic acid negatives, being found in the fact that to get prints of equal beauty and brilliancy from each, the pyro negatives would require at least four times as long exposure in the pressure frame as the others. First class professional photographers who, without excep tion almost use iron, would not drcam of tolerating any fog or veil on the shadows. Let anyone who has the oppor tunity, examine the negatives of Mr. T. R. Williams, which are as clean and brilliant, and free from fog or flatness as photographs can be produced. We have before us at the present moment an iron negative, by the late Mr. Lacy, which is by reflected light a brilliant positive, by trans mitted light, a rich red negative, giving an exquisitely soft and delicate print. Such negatives photographers should always aim to get, whatever process they use; and they must not entertain the idea for a moment that flatness, fog, and greyness are the legitimate result of iron development. Since the above article was in type, Mr. England has read a paper at the Photographic Society, in which he briefly described his method of working in instantaneous photography ; we shall hope to give his method in his own words in an early number. He exhibited at the same time some of his instantaneous iron negatives taken as above described. If one characteristic was more striking than another it was their freedom from flatness, veil, or fog, and their clearness, delicacy, and brilliancy. THE CONTRACT FOR PHOTOGRAPHING IN THE INTERNATIONAL EXHIBITION OF 18G2. The following are the conditions upon which the contract for photographing in the Exhibition Building are to be based, with the additional one, elsewhere announced, but not here expressed, that the Commissioners do not bind themselves to accept the highest or any tender :— The Commissioners for the Exhibition of 1862 undertake to grant the sole andiexclusive privilege of taking photographs of and within the Exhibition Building, for a period extending from the 30th day of April, 1862, until the end of ten days after the close of the Exhibition, subject to the following conditions and regulations:— 1. The foregoing privilege gives the right of taking general views of the interior of the building and its arrangements, but does not give any right to take photographs of individual 158 THE PHOTOGRAPHIC NEWS. [April 4, 186- articles exhibited, without the consent, in writing, of Apki probabl differs n forthwith to Her Majesty’s Commissioners the sum of £ the Commissioners, for the purpose of distribution, but n0 day of 1862. on to f o"•jtiuvv 11-' even ii mere "5. f , 1 such, everyone at all acquainted with photography k‘ it! how futile it would be to take views in a building wi n 1 bad light, with plates brought from a distance of e" to" 11 quarter of a mile or so. There is plenty of space neal d send eastern annexe which might be allotted to photograP , 150rtt without inconvenience, and, unless some such concessi very small tenaer. ine otner conauons, to tne eEla all photographs must be taken before 10 a.m., and. sold in the building, amount to nothing, as Her Commissioners reserve to themselves the right of mi from time to time, such rules, regulations, and cond 11 (Jill -u -.5m' -oumu-ur, mum -1 j I P as to the hours within which, and the mode and plac ' lr . the which the oriyilege mav be exercised nr otherwise as Punted which, the privilege may be exercised or otherwise aS may think necessary.’ a “O' 1 Wears 1 which Eu7 every one must decide for himself, and upon sale, the building. 8uch at I tbi Corntri Signed this Name Address appeal. 6. No sale of photographs will be permitted withip building A part of the tender, it would seem, is expected to 1 sist of copies of the pictures produced, as the foil 0 * form of tender is supplied :— I hereby tender for the above privilege, and undertake tol made, the Commissioners are not likely to get any very small tender. The other conditions, to the effect and its tour. . The P k to be । owners and exhibitors of such articles. 2. The photographs must be taken before 10 a.m., b™ Majesty’s Commissioners reserve to themselves the rig) making from time to time such rules, regulations, and CI tions as to the hours within which, and the mode and P in which, the privilege may be exercised or otherwise, as" tropical R nits it Very ex Place an ■“ e mal his can BY F. R. WINDOW. Cases ron Cameras, &c. The method of packing a camera for travelling or Ca V it about in the field is a matter of individual taste, -judgil better tl Inendati for what The n are,—Isi simply impossible to take any views at all. “Now, as it happens, there is not a single place w any moderate distance of the building which a P grapher could now secure, while, even if there were Patch 1 the edg REMARKS UPON SOME OF THE APPARA EMPLOYED IN PHOTOGRAPHY* Pememb fragile 1 to earn This leathen perfect It is c leather The eertain the loo may think necessary. . 3. Her Majesty’s Commissioners will not provide any 6 811 the11 or room for photographers, or for their processes of develi »handle or preparing their plates or otherwise, all of which proc Wons ine must be carried on beyond the limits of the Exhibition 0 and carr ings. .. , " 4. The photographer and a limited number of assistants bo granted, during the continuance of the aforesaid privi free admission into the building, subject to all such byeW regulations as the Commissioners may from time to make. 5. In the event of any dispute whatever arising either 0 these Articles, or with respect to the true intent and mel of them, the photographer shall agree to abide by the de® of Her Majesty’s Commissioners absolutely and wi Rereen— by bein Protretik The Times, commenting on these conditions, ob0 “omages Atmosph Coyered and stre and chea amera, from inj Hon I w Aadly de vanities the “bo: Wack or and tea: Varnish a Frencl ill-looki "tarred 1 the wore oruuwau w 111 axaujesty a ouluISSIoners me sum oi a . pristine as a consideration for the same, and to place at the dispo j cont copies of every photograph which may take* ntqthert butlittl LUU A coluenu118 •I UMeDE -vnMIUlonS, UM.H “ Many of the great photographers have anxiously lo forward to the publication of this document, and wer"2 pared to offer considerable sums for the privilege of 3 views, &c.; but the third condition of the Commiss has, up to the present, almost entirely debarred any, Ij making an offer, for if this rule is adhered to it woul® * Continued from page 147.
