The Optical Magic Lantern Journal (February 1900)

28 .& proper adequate fee.'’ In most cases simply sufficient to cover the out-of-pocket expenses. are asked, sometimes a little towards.the wear and tear of apparatus. Were this not so, and lanternists stood together as a sort of trade union, the few might gain in pocket, but the use of the lantern as a means of entertainment and education would suffer enormously. It is quite true that there are very few men in any . town with ability to give a first-class exhibition, and who are available at short notice. If they desire to make money out of the work, they are entitled to good remuneration as specialists, but this has nothing to do with the vote of thanks to the lanternist who works for his friends, and is one of themselves. ; There is no necessity for long-winded thanks ; all that is wanted is a proof that his services are valued at their true worth. ; . Yours truly, FRED. W. COOPER. DETERMINATION OF PARTNERSHIP. To Mr. J. Hay Taylor, Editor. Dear Si1zn,—We beg to notify you that the partnership that has subsisted for some years between ourselves and Mr. Arthur Rayment (under the style of Perken, Son & Rayment) was determined by effluxion of time on the 31st December, 1899. We, the undersigned, will continue to carry on business at the same address as hitherto, under the style of Perken, Son & Co., and (by arrangement with Mr. Rayment) will receive accounts due to and discharge all liabilities of the former partnership. Trusting that the confidence reposed in the firm during a period of nearly 50 years may be continued in the future, We are, yours faithfully, EDGAR T. PERKEN, FREDERIC L, PERKEN. 99, Hatton Garden, London, E.C. 0 Six, WEN PGE AIUD Ov i Défes and Queries. NCAR” Correspondents must supply their names and addresses, but, if desired, queries can be replied to under a ‘‘nom de | plume.” G. H. P., W., M. B., and others.— Your letters were forwarded to Mr. Ernest Elliott; probably he has commuonicated with you ere this. H. J. Williams writes :—What course would you advise _The Optical Magic Lantern Journal and Photographic Enlarger. and good, and in course of time you may become a second “Malden,” but at: the same time you must remember that his fame was first made when there were comparatively few candidates for public favour in the lantern lecturing line, whereas there are now many. G. Littleboy.—Your letter’ was forwarded to Mr. Cecil Hepworth.. (1) We would recommend you to write to the Warwick Trading Company, Warwick Court, Holborn, for their latest pamphlet on the Biokam. ' (2) Using a good mixed jet youshould get a picture about 6 feet square. ; LR. 1. Jones.—Through the small hole in the metal plate pass a piece of soft brass or copper wire, fasten one end in a vice, cut off the projecting end short, and give a slight tap with a watchmaker’s hammer; then cut the other end short, lay the pieces on a flat piece of metal, and give a tap or two to rivet the other side. Be careful not to rivet up too tightly, and .try some odd pieces of metal before attempting to put together the silhouette slide you are making. ; H. E, E.—You do not supply your name and address. E. 1, King.—The addresses you require are Messrs. Joseph Levi & Co., Hatton Garden, E.C.; and Messrs. Wrench & Son, 50, Gray’s Inn Road, W.C. P. Newland (Australia).—Letter to hand just as we are going to press. In our next. R. S.—A Jens of 6 inch focus to work at f? would probably cost somewhere about £20—not £8 for a set of three, as you suggest, and such prices would be quite out of the question for the purpose you mention. They would not give a flat field. S. W.—For particulars of films upon which to print lantern transparencies to be held between glasses during exhibition, write to Messrs. Fitch & Co., Seldon House, Fulwoods Rents, Holborn, W.C. J. T.—We shall slightly alter the account of working of the saturator, and insert it shortly. With respect to the testing of cylinders, the Brin’s Oxygen Company see to those that they are asked to fill, but we cannot speak forothers. Weare afraid that your suggestion—“ that the quantity of gas in cylinder registered by consumer in presence of two witnesses be what the consumer has to pay for ''—-will not work. When filling a cylinder the quantity of a foot more or less is not of the slightest moment to the maker, and should consider it the result of carelessness when the proper quantity was not put into yourcylinder. Better senda polite note, asking that more care be taken. R. D. R. Green.—(1) For particulars of the opaque lantern mentioned in our columns, write to Messrs. Newton & Co., 3, Fleet Street, E.C.; limelight is required to give anything like proper results. (2) C. & G., Paris, stands for Clément & Gilmer, 140, Faubourg St. Martin, Paris. Their advertisement will be found in this issue. Two Old Readers.—To give more effect to your cinematographic pictures, you might use what is known as ‘(a watchman's rattle’ to represent the quick firing of | rifles, and a big drum a little slack to represent cannon firing. J. Wren.—The small generator will not, we consider, give sufficient light to illuminate an 8 feet screen a beginner to take who wishes to start lantern lecturing « with a view of making a little over his expenses? He has no connection and no fame. Ans.—We suppose you intend to supply your own apparatus, and it is properly. D. S. Barrate .—Large diameter for the oil or ' acetylene light, and small for limelight. presumed you will have a capable operator, also that you have a good voice and a taking style. Enrol your name with Parkins & Gotto, Spiers & Pond, and other caterers, also with lantern dealers. Circularise among literary and other societies, or start out boldly on a tour with a good advance agent, who will secure halls and attend to advertising. Let your lecture ur entertainment be high-class Herbert Bert—(1) No special advantage if both condensers are ‘‘suited to objective.’’ (2) The meniscus being of slightly longer focus would probably suit better with the 8 inch focuslens. (3) No advantage if you are using limelight, but a gain if a large flame is to be employed, such as oil or acetylene. H.E.E.—Second letter containing nam3 and address was received as we were going to press. In our next.