Index 



Liquids, diffusion 70 

 expansion by heat 170 

 heat conductance 230 

 specific heats 183 

 transpiration 72 

 viscosity 74 



Lissajous's figures 506 



Locomotives 266 

 compound 266 



Low temperatures, production 

 149 



Luminescence, chemical 447 



Luminous spectrum, measure- 

 ment of wave-length of 

 rays 358 



Magic mirrors 304 



Magnetic field, influence on 



spectra 441 



Magnifying power of micro- 

 scopes 318 



power of telescopes 309 

 Magnitude of visible objects 491 

 Maintaining vibrations 507 

 Manometers 129, 179 

 Manometric flames 507 

 Marine engines 261 

 Mariotte's law 174 

 Mass, measurement 109 



standards 92 

 Matter 80 



theories of constitution 79 

 Maximum density of liquids, 

 temperature 173 



and minimum thermome- 

 ters 160 



Measurement of acceleration 

 121 



of angles 99 



of areas 98 



of curvatures 94 



of density 110 



of density of gases 110 



of density of liquids 111 



of density of solids 114 



of density of solids and 

 liquids 115 



of dynamical and mechani- 

 cal quantities, general 

 86 



of energy of visible motion 

 122 



of fluid pressure 129, 131 



of fluid velocity 132 



of force 122 



of lengths 94 



of mass 109 



of polarised radiation 418 



of rotation velocity 120 



of ship's velocity 120 



of temperatures 152, 157 



of time 100 



of vapour densities 115 



of velocity 119 



of velocity of light 355 



of viscosity 73 



of volumes 99 



Measurement of wave-length 

 of infra-red rays 359 



of wave-length of rays in 

 luminous spectrum 358 



of wave-length of ultra- 

 violet rays 360 

 Measuring vibrations 507 

 Mechanical or dynamical 

 theory of heat 235 



equivalent of heat 239 



equivalent of heat, deter- 

 mination 240 



equivalent of light 355 



stages of microscopes 326 

 Media, moving 357 

 Melting points 194 

 Membranes, vibrations 516 

 Metallic reflection 388 



reflection, elliptic polarisa- 

 tion 388 

 Metals, elastic constants 137 



spectra 432 



Methods of research 38 

 Metre 90 



Micrometer eye-piece 329 

 Micrometers and micrometry 



314 

 Microscope accessories 311 



condensers 313 



history 9 



illumination 316 



illuminators 312 



lamps 314 



objectives 323 



stages 326 



stands 327 



test objects 328 



testing 327 

 Microscopes 311 



binocular 319 



dissecting 319 



of various kinds 318 



portable 321 



for projection 321 

 Microscopic vision 373 

 Microseismometry 125 

 Microspectroscope 323 

 Minimum deviation of prism 



286 



Mirage 346 

 Mirrors 303 



and lenses 300 

 Mixtures, thermodynamics 251 

 Moduli of elasticity 140 

 Molecular magnitudes 40 



refraction 406 



theories of crystals 76 



theories of solids 76 

 Moser's images 454 

 Motors 268 



Movements of eye 486 

 Moving media 357 

 Music 538 

 Musical instruments 538 



intervals 544 



sand 511 



tones, quality 544 



Nature of heat 235 



of light 273 

 Newton's rings 366 

 Nicol's prism 412 

 Nobert's tests for microscopes 



327 

 Nomenclature 37 



Objective colours 391 

 Objectives 303 



for microscope 323 



telescopic 309 

 Observing vibrations 507 

 Optical apparatus 335 



glass 405 



illusions 483 



instruments, definition 372 



phenomena 484 



properties of particular 

 substances 413 



pyrometry 161 



systems 299 



telegraphy 338 



Optics of the atmosphere, 

 general 346 



history 10 

 Organ-pipes 520 

 Orthochromatic photography 



454 



Osmosis 66 

 Osmotic pressure 67 



Partition of energy 46 



Pedagogy 33 



Pedesis 53 



Pendulum, compensation 104 



Pendulums, seismometric 125 



Periodic motions, analysis 506 



motions, synthesis 506 

 Permanent deformation and 

 thermal hysteresis 168 

 Persistence of vision 502 

 Phase rule (general) 213 

 Phenomena within eye 501 

 Philosophy 1 

 Phonograph 540 

 Phosphorescence 468 



of particular substances 470 



production 469 

 Phosphorescent spectra 469 

 Photochemistry 455 



of specified substances 456 

 Photographic agents 457 



images 459 



lenses 331 



lenses and systems 330 



plates 464 



printing processes 462 



processes 460 

 Photography 464 



applications 449 



of lightning 450 



orthochromatic 454 



on paper 462 



of Bontgen rays 476 



of spectrum 450 

 Photometers 281 



IV 



