Page:Scientific Memoirs, Vol. 1 (1837).djvu/77

Rh {| align=center interposed. (Those plates whose thickness is not specially indicated have the common thickness of 2mm·6.) || Transmissions out of 100 rays.
 * rowspan=2 | Names of the substances
 * rowspan=2 | Names of the substances
 * Rays immediately from the lamp. || Rays emerging from the alum, (thickness 2mm·6.) || Rays emerging from the sulphate of lime, (thickness 2mm·6.) || Rays emerging from the chromate of potash, (thickness 2mm·6.) || Rays emerging from the green glass, (thickness 1mm·85.) || Rays emerging from the black glass (thickness 1mm·85.)
 * Rock salt || 92 || 92 || 92 || 92 || 92 || 92
 * Fluate of lime || 78 || 90 || 91 || 88 || 90 || 91
 * Beryl || 54 || 80 || 91 || 66 || 70 || 57
 * Iceland spar || 39 || 91 || 89 || 56 || 59 || 55
 * Glass (thick. 0mm.5) || 54 || 90 || 85 || 68 || 87 || 80
 * Glass (thick. 8mm) || 34 || 90 || 82 || 47 || 56 || 45
 * Rock crystal || 38 || 91 || 85 || 52 || 78 || 54
 * Chromate of potash || 34 || 57 || 53 || 71 || 28 || 24
 * Sulphate of barytes || 24 || 36 || 47 || 25 || 60 || 57
 * White agate || 23 || 70 || 78 || 30 || 43 || 17
 * Adularia felspar || 23 || 23 || 58 || 43 || 50 ||23
 * Yellow amber || 21 || 65 || 61 || 20 || 13 || 8
 * Black opake mica (thick. 0mm9) || 20 || 0·4 || 12 || 16 || 38 || 43
 * Yellow agate || 19 || 57 || 64 || 24 || 35 || 14
 * Emerald || 19 || 60 || 57 || 26 || 20 || 21
 * Borate of soda || 18 || 23 || 33 || 23 || 30 || 24
 * Green tourmaline || 18 || 1 || 10 || 14 || 24 || 30
 * Common gum || 18 || 61 || 52 || 12 || 6 || 4
 * Sulphate of lime || 14 || 59 || 54 || 22 || 9 || 15
 * Sulphate of lime (thick. 12mm) || 10 || 56 || 45 || 17 || 5 || 0·4
 * Carbonate of ammonia || 12 || 44 || 34 || 11 || 6 || 5
 * Citric acid || 11 || 88 || 52 || 16 || 3 || 2
 * Tartrate of potash and soda || 11 || 85 || 60 || 15 || 2 || 1
 * Alum || 9 || 90 || 47 || 15 || 0·5 || 0·3
 * Coloured glasses, (common thickness 1mm.85.)
 * Glass, white || 40 || 90 || 83 || 50 || 67 || 55
 * — violet || 34 || 76 || 72 || 42 || 56 || 47
 * — red || 33 || 74 || 69 || 41 || 54 || 45
 * — orange || 29 || 65 || 58 || 36 || 48 || 39
 * — green (apple) || 25 || 3 || 20 || 22 || 55 || 50
 * — green (mineral) || 23 || 1 || 15 || 19 || 52 || 58
 * — yellow || 22 || 49 || 46 || 27 || 35 || 30
 * — blue || 21 || 47 || 42 || 26 || 34 || 29
 * — black (opake) || 16 || 0·5 || 18 || 11 || 42 || 52
 * — indigo || 12 || 27 || 26 || 14 || 20 || 17
 * }
 * Common gum || 18 || 61 || 52 || 12 || 6 || 4
 * Sulphate of lime || 14 || 59 || 54 || 22 || 9 || 15
 * Sulphate of lime (thick. 12mm) || 10 || 56 || 45 || 17 || 5 || 0·4
 * Carbonate of ammonia || 12 || 44 || 34 || 11 || 6 || 5
 * Citric acid || 11 || 88 || 52 || 16 || 3 || 2
 * Tartrate of potash and soda || 11 || 85 || 60 || 15 || 2 || 1
 * Alum || 9 || 90 || 47 || 15 || 0·5 || 0·3
 * Coloured glasses, (common thickness 1mm.85.)
 * Glass, white || 40 || 90 || 83 || 50 || 67 || 55
 * — violet || 34 || 76 || 72 || 42 || 56 || 47
 * — red || 33 || 74 || 69 || 41 || 54 || 45
 * — orange || 29 || 65 || 58 || 36 || 48 || 39
 * — green (apple) || 25 || 3 || 20 || 22 || 55 || 50
 * — green (mineral) || 23 || 1 || 15 || 19 || 52 || 58
 * — yellow || 22 || 49 || 46 || 27 || 35 || 30
 * — blue || 21 || 47 || 42 || 26 || 34 || 29
 * — black (opake) || 16 || 0·5 || 18 || 11 || 42 || 52
 * — indigo || 12 || 27 || 26 || 14 || 20 || 17
 * }
 * Glass, white || 40 || 90 || 83 || 50 || 67 || 55
 * — violet || 34 || 76 || 72 || 42 || 56 || 47
 * — red || 33 || 74 || 69 || 41 || 54 || 45
 * — orange || 29 || 65 || 58 || 36 || 48 || 39
 * — green (apple) || 25 || 3 || 20 || 22 || 55 || 50
 * — green (mineral) || 23 || 1 || 15 || 19 || 52 || 58
 * — yellow || 22 || 49 || 46 || 27 || 35 || 30
 * — blue || 21 || 47 || 42 || 26 || 34 || 29
 * — black (opake) || 16 || 0·5 || 18 || 11 || 42 || 52
 * — indigo || 12 || 27 || 26 || 14 || 20 || 17
 * }
 * — green (mineral) || 23 || 1 || 15 || 19 || 52 || 58
 * — yellow || 22 || 49 || 46 || 27 || 35 || 30
 * — blue || 21 || 47 || 42 || 26 || 34 || 29
 * — black (opake) || 16 || 0·5 || 18 || 11 || 42 || 52
 * — indigo || 12 || 27 || 26 || 14 || 20 || 17
 * }
 * — black (opake) || 16 || 0·5 || 18 || 11 || 42 || 52
 * — indigo || 12 || 27 || 26 || 14 || 20 || 17
 * }
 * }