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WITH WHICH IS INCORPORATED THE ‘‘LANTERN WORLD.”
Vol. 11.—No. 136.
SEPTEMBER, Igo0.
Price 2d., Post-free 3d.
CONTENTS. PAGE Notes a a SS ee [ Which Acetylene Generator shall Buy? .. .. .. .. 2. 106 ‘Tone Values in Lantern Slides .. pies, shar aie +. 108 How to Mount Snapshot Lenses... oe wee. 109
The Total Eclipse of the Sun (28th May, 1900) and its Photographic Results... 0.0.2.0... 00. 6. we we we ee Ud Shadowgram or Silhouctte Slides.—No. XVIII... ..
va 112
Now Apparatus .. 1.06.0... ck ee ae eee ae. ae dda
Patent Intelligence .. 4... we ee ce ee ee ee ee ee 1
Notes and Queries 1... 6. ee ee ee ee ee ne ee ae LG NOTICES.
THE Optical Magic Lantern Journal and Photographic Enlarger is issued on the lat of every month, price Two Pence, and may be obtained from all Newsvendors, Railway News Stalls, Photographic Dealers, or from the Publishers, at the following rates, post free :—
12 months, 3/-. United States, 75 cents.
Excuancz Column, General Wants, &c. (not Trade)— First 20 words, 6d.; and for every 3 additional words, ld.
SMALL ADVERTISEMENTS must reach the office not later than the first post on the 24th of each month. All cheques and postal orders to be made payable to the Magic Lantern Journal Company, Limited.
EDITORIAL communications must be addressed, J. HAY TAYLOR, Advertisements and business communications to THE MAGIC LANTERN JOURNAL COMPANY, Limited, 9, Carthusian Street, London, E.C.
American Agents:—The International News Co., 83 and 85, Duane Street, New York City.
Office Library and Reading Room, Chancery Lane, there are some 557 works on subjects pertaining to photography, lanterns, etc., which may be consulted without “red tape.” The reading room, which is open free every day, contains a vast collection of text books upon every subject and also periodical literature. ~ bod ~
Flat P.O.P. Prints.—A Glasgow contemporary asks what can be more annoying than to have a number of P.O.P. prints placed before one to examine, each rolled up, little larger than a lead pencil, and obstinately refusing to uncurl. It may not be generally known that the addition of a very little glycerine to the last washing water of the prints will make them lay flat when dry, just as it does with rollable films.
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Waste Calcium Carbide.—It is a wellknown fact that in all carbide works a vast amount of material is manufactured that is of such inferior quality that it cannot be employed in connection with acetylene, and go far has