vi 



INDEX. 



Light, Magnesium 10 



" Lime 11 



" Composition of, 109, 117, 136 



Polarized 127 



Lissajous' experiments ... 69 



Mach's experiment .... 64 



Magnetism 150 



Magnetic phantom 

 Manometric flames 



Marine glue 



Megascope 



Melde's experiment . . 



Microscope, Solar . . . 



" attachment . 



Minute substances 133 



Mirage 95 



Monochromatic light . . 108, 122 



Newton's disk 143 



" rings 109 



Objective 25 



Objects for projection ... 27 



Organ pipe 65 



Opeidoscope 59 



Outline drawings 29 



Overtones 71 



Persistence of Vision . ... 139 



Pepper's ghost 84 



Plateau's (experiment) ... 56 



Polarization of light .... 127 



Porosity 45 



Porte Lumiere, To make . . 2 

 " " its use ... 24 

 Porte Lumieres, various pat- 

 terns 2, 3 



Projection with single lens . 24 

 " condenser . . 27 

 of large apparatus, 35 

 " Apparatus for ver- 

 tical 40 



Pyrometer 145 



Rainbow 100 



Reactions, Chemical .... 157 



Reflections 82 



Reflections, Multiple 

 Refraction .... 

 Resultants .... 



Salicine crystals 



Screens 



Sciopticons 



Silver crystals 



Singing flames 



Sinuous lines 



Sizes of objects and of images, 

 To compute 



Soap bubbles, Persistent . . 

 " " Tension of . . 



Sodium line in solar spectrum, 



Solar microscope 



" spectrum ...... 



Spectacle glasses, To test . . 



Spheroidal form 



Spectra, Methods of project- 

 ing 121, 



Spectrum analysis 



" of sodium .... 

 " " " reversed . 



Starch 



Stroboscope 



Sympathetic vibrations . . . 



Thermometer 

 Total reflection 

 Tuning forks . 



Vibrations of strings . . . . 

 " " forks . . . . 



Vision, Persistence of . . . 



Vortex rings, To produce . . 

 " " their phenom- 

 ena 



Water, Decomposed . . . . 



" Maximum density . . 



" Refraction of . . . . 



" Total reflection in . . 



Waves in water 



Whirling-table attachment 



Zoetrope , . . 



134 

 6 



171 

 108 

 107 

 170 

 100 



m 



119 



122 

 134 



57 



59 

 57 



172 



174 



153 

 146 

 97 



61 



77 



140 



