The Optical Magic Lantern Journal (June 1894)

106 The Optical Magic Lantern Journal and Photographic Enlarger. On July Ist Messrs. Riley Bros. will remove from their present premises, at 5, Cheapside, Bradford, to 65 & 57, Godwin Street, Bradford, at which place they will have more accommodation for their increasing business. The new premises will be supplied with electric light, passenger elevator, goods hoist, etc. A few days ago this firm awarded several prizes, each of five dozen slides, to hirers of their slides from September ist to May Ist. The prizes have been awarded, in five sections, to those whose names appear in another page of this journal. (See Advt., p. xii). Tue Thornton Pickard Manufacturing Company have opened an American branch at 2, Park Square, Boston, Mass., U.S.A. at * xt “THE Stupio,”’ 36, Heath Street, Birmingham, has been purchased by Mr. A. H. Saunders, late of Brierly Hill, Staffs., at which address he will continue business as slide artist. Mr. Saunders has lately been preparing a set of sixteen astronomical slides. At the 62nd annual exhibition of the Royal Cornwall Society to be held on August 28th, a special department will be devoted to the exhibition of photo-mechanical process work. Full particulars may be obtained from Mr. H. Snowden Ward, 6, Farringdon Avenue, E.C., or Mr. E, Kitto, The Observatory, Falmouth. 7 * * A FoupING whole-plate Kodak camera has just been introduced by the Eastman Photographic Materials Co., (Ltd.); it is fitted with Iris diaphragm shutter, double swing back, rising and swing front, &c. The new Matte Solio paper of this firm is meeting with great favour. Although it has been ready for months, it was decided to delay until now putting it on the market, so as to enable various tests to be first made. , * * *% At “Olympia” the first penny-in-the-slot machine for seeing stereoscopic views (as mentioned in page 86 of last issue) has been placed in A prominent position and is reaping a good harvest of coins. “ * By Tue last lantern entertainment at the Royal Albert Hall that was given by Messrs. D. Noakes & Son, of Greenwich, proved such a success that an engagement has been entered into by this firm to give an entertainment of the same character at the same hall, on 6th inst., in connection with the Jubilee Conference of the Young Men’s Christian Association. A 40 ft. screen will be used. ———0 On Improving the Illumination of Oil Lamps. Own another page we insert a letter from Mr. W. Jackson Pigott, in which he explains some experiments which he has been making with the view of obtaining increased illumination from an oil lamp by means of a fine spray of benzoline ejected in front of each wick. In the letter spoken of, the hope is expressed that if any reader has been experimenting in this direction he will state the results obtained. The subject being an interesting one, it is to be hoped that some such idea may be worked out in a practical manner. It may be interesting here to note that upwards of fifty years ago Mr. W. K. Bridgeman, of King’s Lynn, made some experiments in connection with oil and oxygen, and in a communication published in 1841, stated that bcing engaged in the early part of the winter of 1839 with a scientific gentleman of that town, Mr. Edward Mugridge, in experimenting with the magic lantern and endeavouring to obtain a better light than was given by the common lamps usually sold with them, the idea was suggested by the latter gentleman of supplying the flame with oxygen gas. The attempt was made, but did not answer in the way they tried it. He then turned his attention to it more minutely, and, after a long course of experiments, succeeded beyond his most sanguine expectations ; the idea was that it might be attained by filling the interior of the flame of a common candle or smal] lamp with oxygen gas which proved correct. The gas was passed through a large aperture with but little pressure, and produced a light both steady and perfectly under control. He had one burning for three or four hours at a time, with a light scarcely to be borne by the naked eye, without requiring to be even touched, and was convinced by his own experience and the opinion of a first-rate London optician, whose judgment may be relied on, that the invention would bea great benefit to the optical world, and particularly as its construction was so simple that anyone possessing a moderate share of mechanical talent may construct one for himself; and on that account he was more particular in giving the minute