108 INDEX.Cylinders for gas, 25contents of, <strong>to</strong> ascertain, 29fine adjustment valve for, 30gauges for, 27nipples for, 32regulations, re carriage of, 33regula<strong>to</strong>rs for, 26strength of, 25valve-keys for, 30valves, <strong>to</strong> test, 81Hersohell's condenser, 64Holders for oxygen, 20niuminant, necessity for a small, 3Incandescent electric light, 46gas light, 37Inean<strong>to</strong> acetylene genera<strong>to</strong>r, 37Decomposition, <strong>to</strong> show, 92Developing in <strong>the</strong> lantern, 86Dlssolver for oil lamps, 55Double-wick lamps, 6E.Eclipse slide-carrier, 58Edison-Swan incandescent lamp,46Effects, 80Electric light arc lamps, 48incandescent, 46Erecting prism, 88E<strong>the</strong>r, 35Excelsior limes, 15Fluorescence, <strong>to</strong> show. 95Focus of objectives, 66G.Galvanometer, lantern, 87Gas-bags, 18pressure boards for, 19Gases, compressed, 25Gas holders, 20home-made oxygen, 18, 21Gauges for cylinders, 27Gravatt's condenser, 64Gwyer's jet, 13J.Jets, 11, 40angle <strong>to</strong> <strong>the</strong> lime of, 45light yielded by, 44<strong>to</strong> centre, 76Keys for cylinder valves, 30Einema<strong>to</strong>graph, 102films for, 103Kinetesoope, 103L.Lamps, oil, 5Lantern, Ander<strong>to</strong>u's stereoscopic,98animated, 102body, 53choice of, 2, 4design of, 60developing in <strong>the</strong>, 86exhibitions, general hints on,79experiments, 85for opaque objects, 89for vertical projections, 90front, 56galvanometer, 87microscope, 99parts of, 2polariscope, 97slides, standard size, 56
iINDEX. 109Lantern, epectrosoope, 93<strong>the</strong> optical system of, 4for advertising, 72biunial, 55for limeligrht, 53portable, 60single, 54tilting stand for, 54Lenses, preservation of, 68Lever slides, 81Lights, comparison of powers of,2, 4electric arc, 48electric incandescent, 46<strong>to</strong> centre, 76Lime discs, 15adjustment of, 14" Excelsior," 15pitting of, 13" New<strong>to</strong>nian," 16"Nottingham," 15preservation of, 16shield, 17substitute for, 17M,Manganese oxide, 22Manipulation of oil lamps, 8Marking slides properly, 77Microscope, 99Mixed jet, 13, 43Moonligbt effects, 83Mounted slides, 57Moving slides, 80N." New<strong>to</strong>nian " limesNew<strong>to</strong>n's disc, 96Nipples for cylinders, 32" Nottingham " limes, 15Objectives, calculations for, 67curvative of field in, 66forms of, 65Oil lamps, 5directions for using, 8Opaque objects, showing, 89Optical system, 4, 62Optimus lamp, 7Oxyalcohol light, 41Oxycaloium jet, 12, 40Oxygen apparatus, 21home-made, ISmixture, 22<strong>to</strong> wash, 23P.Packing cylinders, 33Pamphengos lamp, 7Panoramic slides, 81Paris Bazaar, fire at, 36Pneumatic gas-holders, 20Polariscope, 97Portable <strong>lanterns</strong>, 60Precautions when using gauges, 2fPreservation of limes, 16Pressure-boards, 19Pringle's attachment, 44Prism for erecting, 88E.Railway regulations re oylinderi33Bain effects, 82Regulations, County Council, 74Regula<strong>to</strong>r for, 26and gauge combined, 32Resistances for arc lamps, 51Revolving slides, 82Ross arc lamp, 49, 50limelight lantern, 60Rubber tubing, 30, 32S.Satura<strong>to</strong>rs, 35Sciopticon lantern, 6" Scissors " arc lamp, 48Screens, 69<strong>to</strong> suspend, 71
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In^ f-e'
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Cornell UniversityLibraryThe origin
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HUbrniiiS'OXYGENSiMPIiEXCERTAIN ACT
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HUGHES' SPECIAL BIDNIALWith Solid B
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HUGHES' PATENT BIJOUENLARGINGLANTER
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MODERN MAGIC LANTERNS.
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:MODERNMAGIC LANTERNSA GUIDE TOTHE
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Preface to the First Edition.Some f
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CONTENTS.Chap.I. InteodttctokyII. O
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Modern Magic Lanterns.CHAPTER I.3nt
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INTEODUOTOET.ifeet in diameter, a m
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CHAPTERII.Nearly all the old-fashio
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OIL LAMPS.the other end, which went
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OIL LAMPS.aThey should be trimmed e
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CHAPTER III.^beXimeligbt.The most p
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THE LIMELIGHT. 13be incapable of be
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THE LIMELIGHT. 15in a moment on loo
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THE LIMELIGHT. 17is not used to the
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HOME-MADE OXYGEN, GAS HOLDBES, ETC.
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HOME-MADE OXYGEN, GAS HOLDEES, ETC.
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—BOME-MADB OXYQEN, QAfi HOLDBBS,
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CHAPTER V.Compteeaeb(Baeee.Most lan
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OOMPEESSED GASES. 27with the pressu
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COMFBESSED GASES. 29are atmospheres
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COMPKESSED GASES. 31for tttmmg on a
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—OOMFBESSED QASEB. 33foot, red or
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CHAPTEE VI.jetber, 3ncant)escent (5
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ETHEE, INCANDESCENT GAS, ACETYLENE,
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ETHEB, INOANDSSCEMT QAB, AOEXYLENE,
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JETS. 41inch above the top of the w
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JETS. 43As the jet plays upon the l
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JETS. 45unless the pressure is grea
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THE ELEOTBIO LIGHT. 47"Where a very
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THE EIiEOTEIO LIGHT. ^9Borland, of
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THE ELBOTEIO LIGHT. 61solid. In get
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CHAPTER IX.^be XanternBo^i^.The var
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THE LANTBEN BODY. ,55above the othe
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THE LANTEEN BODY. 57mounted slide i
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