Schedule of Classification 



PAGE 



Polarisation by Reflec- 

 tion. (See also 4010.) 375-379 

 Dispersion. (See also 3030. ) 375-376 



Reflection 376-377 



Crystalline Reflection ... 377 

 Reflection and Refraction 377-378 



Refraction 378 



Wave Theory 379 



3822 Refraction : Influence of Tem- 

 perature, Density and 

 Change of State 379-380 



Refractive Indices ... 380 



3824 Total Reflection. (See also 



Mineralogy 420.) ... 380-381 



3830 Crystalline Media, Refraction 

 in. (See also Mineralogy 



420.) 381-387 



Biaxial Crystals ... 381-382 



Double Refraction 383-385 



Iceland Spar 385 



Refractive Indices 386-387 



3835 Strained Media, Refraction in 387-388 

 Double Refraction 387-388 



3840 Metallic Reflection ... 388-389 



Elliptic Polarisation by 

 Metallic Reflection. (See 



also 4005.) 388 



3850 Selective Reflection and 

 Absorption, including 

 Objective Colours. Di- 

 chroism. Anomalous 

 Dispersion. (See also 

 3240, 4200; Chemistry 



7320.) 389-400 



Anomalous Dispersion 389-390 



Colours 391-393 



Of Waters ... 392-393 



Dichroism 393 



Fraunhofer Lines . . . 393 



Selective Absorption 394-399 



By Crystals 395 



Spectra 396-399 



By Waters 399 



Transparency ... ... 400 



3855 Heat Rays, Reflection, Re- 

 fraction and Absorption 



of 400-404 



Absorption ... ... 401 



Diathermancy . . . 401-402 



Spectra 403-404 



3860 Chemical Constitution, Rela- 

 tion of Refraction, Dis- 

 persion and Absorption 

 to. Optical Glass 404-408 



Absorption Spectra ... 404 



Optical Glass 405 



Refraction ... 405-407 



Equivalents ... ... 406 



Molecular Refraction ... 406 

 Refraction and Disper- 

 sion 407 



PAGE 



Refractive Indices... ... 407 



Refractive Power ... 407-408 



3875 Reflection, Refraction and 

 Absorption of Electric 

 Radiation ... 408-409 



Absorption ... 408-409 



Reflection 409 



Refraction 409 



Polarisation. (See also Mineralogy 



400-440.) 

 4000 General. Instruments and 



Methods ... 409-415 



Instruments and Methods410-413 



Polarimeters . . . 410-41 1 



Polariscope ... ... 411 



Prisms 411-412 



Polarising Prisms 411-412 

 Saccharometers . . . 412-413 



Optical Properties of Par- 

 ticular Substances ... 413 



Polarised Light 414 



Vibration Plane of Polar- 

 ised Light ... 414-415 

 4005 Elliptic and Circular Polari- 

 sation. General 415-416 

 Circular Polarisation ... 415 

 Elliptic Polarisation 415-416 

 Elliptical Polarisation 

 by Reflection at Trans- 

 parent Media ... 416 

 4010 Production of Polarised Ra- 

 diation 416-418 



Polarisation of Heat 416-417 



Polarisation by Particular 



Substances 417 



Polarisation by Reflection 417-418 

 4020 Measurement of Polarised 



Radiation 418 



4030 Rings, Brushes and Colours 



of Crystals, etc. 418-421 



Crystals 418-420 



Biaxial Crystals ... 419 



Uniaxial Crystals ... 420 

 4040 Rotatory Polarisation and 

 Dispersion, Structural 

 and Magnetic. General. 

 (See also 6650, 6655; 

 Chemistry 7315.) 421-423 



Rotatory Dispersion ... 421 

 Rotatory Polarisation 421-423 



Quartz 422 



4050 Rotatory Powers of Sub- 

 stances ... 423-425 

 Sugar 424-425 



The Emission and Analysis of Radia- 

 tion, Phosphorescence, Radioac- 

 tivity, Spectra, etc. 



4200 General. (See also 3010, 



3850.) 425-428 



