TABLE 340. 

 INDEX OF REFRACTION. 

 Miscellaneous Monorefringent or Isotropic Solids. 



'83 



Substance. 



Albite glass 



Amber 



Ammonium chloride . . . . 



Anorthite glass 



Asphalt 



Bell metal 



Boric Acid, melted 



Borax, melted 



Camphor 



Canada balsam 



Ebonite 



Fuchsin 



Gelatin, Nelson no. i . . , 



" various 



Gum Arabic 



Obsidian 



Phosphorus 



Pitch 



Potassium bromide 



" chlorstannate 



" iodide 



Resins: Aloes 



Canada balsam . 



Colophony 



Copal 



Mastic 



Peru balsam. . . . 

 Selenium , 



Sodium chlorate 



Strontium nitrate 



Spectrum 

 line. 



D 



D 



D 



D 



D 

 0.670;^ 



D 



C 



D 



F 



C 



D 



F 



D 



D 



D 

 red 



A 



B 



C 



G 



H 



D 



D 

 red 

 red 



D 



D 

 red 



D 



D 



D 

 red 

 red 

 red 

 red 

 red 



D 

 A 

 B 



C 

 D 

 D 



D 



Index of 

 refraction. 



1.4800 



1.546 



1.6422 



1-5755 



1.635 



1. 621 



1.0052 



1.4623 



1 . 4637 



I . 4694 



I . 4624 



1.4630 



I . 4702 



1.532 



I • 5462 



I 530 



1.66 



2.03 



2.19 



2.33 



1.97 



1.32 



1.530 



1.516-1.534 

 1.480 

 1.514 



I. 48 2-1. 496 

 2.1442 

 1. 531 

 I.SS93 

 1.6574 

 1.6666 

 1. 619 

 1.528 

 1.548 

 1.528 

 I -535 

 I 593 

 2.61 

 2.68 

 2.73 

 2.93 

 1-5150 

 1.5667 



Authority. 



Larsen, 1909 

 Mlihlheim 

 Grailich 

 Larsen, 1909 

 E. L. Nichols 



Beer 



Bedson and Williams 



Kohlrausch 

 Muhlheim 

 Mean 



Ayrton, Peny 

 Mean 



Jones, 1911 



Jamin 



WoUastOB 



Various 



Gladstone, Dale 



Wollaston 



Topsoe, Christiansen 



Jamin 



WoUastoa 



Jamin 



Wollaston 

 Baden Powell 

 Wood 



Dussaud 

 Fock 



Smithsonjan Tables. 



