CONTENTS OF CATALOGUE. 



IX 



CHAPTER XI.. THE LIME LIGHT. 



PACK 



Flame Illuminnti m lal 



Vaiietit-s in Lime Light 151 



No. 1, Alcohol Burner 152 



No. 2, House Gas Concentric 



Burusr 153 



Dr unimond Light 154 



No. 3, Mixed Jet , 155 



Dangers Peculiar to Mixed Jet, 155 

 Annoyances Peculiar to the 



Mixed Jet 156 



Marcy's Triple Jet 158 



Oil Sciopticon with Triple Jet. 160 



Lime-light Sciopticon 161 



Triple Jet Adjustments... 161 



Lime-light Adjustments 163 



Ratio of Spaces 164 



Changing the Scene 166 



The Automatic Cut-off. 167 



Patent Slide Carrier 169 



Both Seiopticons with an in- 

 terchangeable Set of Lenses.. 170 



Dissolving Cock 171 



Preparation of Oxygen Gas .... 172 

 Preparation of Hydrogen Gas. 174 



Pressure Boards 177 



Self-Condensing Cylinders 178 



MultuminParvo 181 



An Economical Form of Gas 

 Holder for the Lime Light... 182 



Other Gas Contrivances 186 



Lantern Attachments 188 



Microscope Experiments 189 



Holman's Siphon Slide 190 



Gas Microscope, by Henry Mor- 

 ton, PH. D 191 



Sciopticon Microscope Attach- 

 ment 194 



The Megascope 195 



Sciopticon Kaleidoscope 197 



Reflecting Polariscope 199 



Refracting Polariscope 200 



CONTENTS OF SCIOPTICON CATALOGUE. 



INTRODUCTION. 



Notice, Sixth Edition 



Where to find Explanations, 

 Peculiar Advantages of the 



Oil Sciopticon 



Peculiar Advantages of the 



Gas Sciopticon 



How to Secure the Fullest 



Ad vantages of Both 



Late Improvements 



Lantern Projections as an 



Educational Appliance. . . 



PAGE 



ii 

 iii 



iv 



xiii 

 xiv 



PAGB 



Comparison of the Different 



Sources of Illumination., xviii 

 The Slide Question- 

 Plain or Colored ? xxi 



Nature or Art? xxiii 



Strong or Faint ? xxiii 



The Bad and the Good xxiv 



What's in a Name? xxiv 



Descriptive Lectures xxv 



Sciopticon Catalogue A r - 

 rangement xxvi 



PRICE LIST OF SCIOPTICON APPARATUS. 



PACK 

 .. 1 



Oil Sciopticon, etc 



Gas Sciopticon 2 



Gas Bags, Generators, etc 2 



Chemicals, Chemical Apparatus, 3 



Separate Parts of Apparatus 3 



Lantern Attachmeats 4 



Combinations and Estimates... 5 

 Dissolving Views 6 



