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336 THE PHOTOGRAPHIC NEWS. LMAY 25, 1883. and carefully using the actinometer, certainty was easily attain able. During the evening some albums of very fine specimens of carbon printing, kindly lent by the Autotype Company, were exhibited. On the motion of the Chairman, a vote of thanks to Mr. Brightman for his interesting paper and experiments, and a similar vote to the Autotype Company for kindly lending the fine collection of prints shown, were accorded. North Staffordshire Photographic Association. A meeting of this Society was held on Saturday evening, May 19th, at the Wedgwood Institute, Mr. A. Humboldt Sexton, F.C.S., President, in the chair. After some discussion it was resolved to hold two exhibitions of members’ work during the year ; one to be an exhibition taken from the work of the present summer, the other to be held some time in the winter, and to partake of the nature of a lantern entertainment. It was also agreed that a few summer excur sions be organised. It was announced that at the next meeting, to be held in about a fortnight at the Town Hall, Hanley, a paper upon “ Various Modes of Development ” would be read by the Secre tary. Mr. Blackshaw having been elected a member, the meeting was adjourned. The Postal Photographic Society. A committee meeting was held 11th May, at the President’s house. The following, amongst other business, was transacted, the minutes of the preceding meeting having been read and con firmed. 1. The votes upon Competition No. 1 were laid before the meeting, and the following were declared to be the winners :— Class 1. Landscape—1st prize, J. W. Leigh, Manchester, with 36 votes; 2nd prize, H. H. Cunningham, 15 votes. Class 2. Portraits—W. Withall, 49 votes. Class 3. The set subject — A. Watkins, Hereford, 36 votes. 2. The accounts were submitted to the meeting, showing a balance in hand of €9 3s. 3d. 3. The prints sent for competition No. 2 were brought before the meeting, and after they had been inspected, the Committee awarded the prizes in value. Class 1. Landscape or view—1st, las. ; 2nd, 10s. Class 2. Portrait, figure, or group—1st, 15s.; 2nd, 10s. Class 3. Set subject (a winter subject) — One prize, 7s. 6d. 4. The thanks of the Society were ordered to be sent to the two members who had offered prizes in encouragement of special subjects, to be competed for in June; and the Society adopted the proposal, and added a second prize of 5s. in each class, as defined by the givers. 1st. Landscape—5 by 4 up to 10 by 8 ; 2nd. Portrait of member, taken ly himself (fiot to be printed in Platinotype) ; 3rd. The best architectural subject (to be com peted for under the Society’s rules). 5. Resolved that for the future no member be allowed to exhibit more than three pictures in each class for competition, and that all members be requested to use mounts as light in weight as possible, and not larger than “ half-royal.” G. That some special slips be printed for the use of members in noting competition prints. 7. That the general meeting be held Saturday, 16th June, at 3 o’clock, and a committee meeting the same day at 2’30, both at the Hon. Sec.’s address. 8. That a date be fixed at the next meeting for sending in prints intended to be exhibited at the Photographic Society’s Exhibition in Pall Mall. Everything below half-plates to be ex cluded, but otherwise members may send what they like as to size or subject. That at the same time a competition in two set subjects be invited as follows:—The best study of an old house or cottage ; the best marine, lake, or river view. 9. That the Committee decline for the future to assign any print in the competitions to any particular class, preferring to leave it to the members themselves, in giving their vote, to decide whether the picture properly comes within the class in which it is placed by the exhibitor. 10. That on account of the great increase in the amount of secretarial work, the office of the hon. secretary and the hon. treasurer be divided, and that W. M. Baylis be appointed hon. treasurer, and, on the motion of W. Withall, that a small gratuity should be named at each meeting to be given to Mr. Cunningham’s clerk, and for his services up to the present the meeting award him the sum of five shillings. The Committee learned with pleasure that the Society was prospering, and now numbered between fifty and sixty members. After having inspected some specimens of platinotype in the new sepia tint, and learning details from W. Withall and the Hon. Secretary, the meeting dissolved. Ualk in the Studio. Photographing the Derby.—Mr. Henderson and Mr. Cobb made another attempt at photographing the Derby on Wednes day, the conditions as to light being much more favourable than last year ; and we are pleased to be able to state that the results are highly satisfactory. Photographic Club.—At the meeting of this Club, May 30th, the discussion will be on “ Estimating the Duration of Short Exposures.” Mr. Warnerke has kindly promised to bring his test apparatus, by which members will be able to ascertain the exact speed of their instantaneous shutters. Those desirous of taking advantage of this opportunity must bring their cameras, lenses, and plates. gfo “grresgsuenis. F. W. W.—Thanks; wo shall be glad to have full particulars. G. I. B. A.—We do not imagine that there is any patent covering it, as it is merely an effect of double printing. K.—We would suggest that it would, perhaps, be easier for you to fill spare time by photographing objects of local interest, and by supplying these to stationers at such prices as to afford them a large profit. You would thus induce them to push the sale ef the pictures, which should, of course, bear your own name and address. W. Gaddman.—Try Marion, of Soho Square. B. Richards.—Obtain another sample of paper. E. E. M.—See answer to A. Bath in our issue of last week. Stereo.—1. Yes, divided and reversed. 2. Either by the carbon process, or, better still, on gelati no-chloride plates. D. Ireland.—It is extremely difficult to form a reliable judgment in such cases as you refer to, but we are inclined to think that the plate sent has been damaged by contact with foreign matter subsequently to the coating; but whether before or after exposure, we cannot conjecture. Novice.—1 and 2. It probably is due to the reflection of light from either the edges of the lens, or the mount. Direct your lens towards a brightly-lighted object, and look through it carefully, altering its position from time to time. This should give you an indication which will enable you to discover the cause. 3. We notice none, and in ordinary cases it is so slight as to be quite un important, unless the picture is taken at close quarters. 4. Only better when wide-angle pictures are actually required. 5. No, not for pure landscape work. 6. It renders the camera unsuited for stereoscopic work, as there is not room enough for the double front. 7. An ordinary quarter-plate (so-called) pocket camera. 8. It would be better to obtain one (the wide-angle) considerably shorter (say half or two-thirds), and the other a trifle longer (say one-third more). We shall always be pleased to hear from you, and to give you any assistance in our power. Greaves.—Marine glue is best; but ordinary shoemaker’s wax makes a fair substitute. The glass should be thoroughly and uniformly warmed. Shields.—1. The water contains a large proportion of soluble chlorides. 2. Avoid allowing them to remain at rest for too long a time. 3. It should disappear during the process of fixing. J. Hampton.—1. It is hardly advisable, as organic impurities which are present in the kaolin often make matters worse. 2. The printing bath is a much less delicate preparation, and ordinary commercial kaolin generally answers fairly well. A. G. B.—1. Those you mention are fairly good ; but, of course, you must not expect to obtain results equal to those obtained with more cumbrous and expensive apparatus. 2. We will try and obtain full information. 3. Rather more expensive and trouble some ; but the results are far superior and more permanent. Lightly.—1. Change their position from time to time. 2. A pale buff colour answers well in ordinary cases. 3. Certainly, but you should obtain the permission in writing. J. II. G.—Reduce the strength a trifle. A. L. M.—You had better obtain " Heliographie," by Professor Husnik. It is published by Hartleben, of Liepzig. Any foreign bookseller will obtain it for five or six shillings. E. H. Farmer.—Thanks for your note. Shah Khan.—Write to the Secretary, 22, Albemarle Street.