The book of lantern ; being a practical guide to the working of the optical (1888)

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ADVERTISEMENTS. Qarion j _ Jghoto -_ §U£PJy_ jgtarehouse. COW.A.:N 'a -KJELATINO-CHLORIDE PLATES* For Lantern Transparencies. GIVING THE FINEST TONES,-GOLD, MEDIUM, OR WARM. These Plates have been in the market for some years, and give great satisfaction. They are novr sent out m grooved boxes, thus preventing any risk of scratchiug or markiug of the Plates by the Tissue Paper. Messrs. BOBIHSON & THOMPSON, of Liverpool, write of these Plates on October 2, 1888, '' The Cowan's Transparency Piates lately received in grooved boxes were simply perfection. There was not a flaw on them of any kind." * CHLORO - BROMIDE PLATES, * SPECIALLY PREPARED FOR' MAKING LANTERN TRANSPARENCIES BY REDUCTION IN THE CAMERA, OR BY CONTACT. THE METAL MINIATURE CAMERA, MADE SPECIALLY POS LANTEEN SLIDES. Fitted with a Voigtlender's Rapid Euryscope Lens, which, when not in use, racks into ihe body of the Camera. The Lens ia of the best construction to secure sharp definition, so necessary in Lantern Slides, which, when thrown on the screen, if the Negative be not sharp, will enlarge all defects ; besides the quality of Lens, the Metal Camera itself is so compact and bandy that with 12 Slides it may be packed in about 8J by 6 in. Price complete with 12 Slides, £Q. 10S. 6d. MARION'S NEW ENLARGING APPARATUS 4 MAGIC LANTERN. Fitted with Compound Condensing Lenses. 8J inch, and Patent 3-wick Paraffin Lamp, giving a very powerful light. Price £7. MARION & LQ,,22&23, Soho-sq, London. b 2