﻿Table 
  III 
  a. 
  

  

  S 
  OS 
  

  

  ® 
  So 
  

  

  ^1-^ 
  

  

  A. 
  Seleniie 
  or 
  Marienglass 
  (from 
  

  

  Italy). 
  18° 
  C. 
  ; 
  131 
  rev. 
  per 
  

  

  minute 
  ; 
  ^=1500 
  cc. 
  ; 
  S 
  = 
  26 
  cm.^ 
  

  

  14-15tli 
  May, 
  1908. 
  

  

  0001600 
  

   0002754 
  

   0003701 
  

   0004743 
  

   •0005360 
  

   0005890 
  

   0006420 
  

   •0006980 
  

   0007585 
  

   0008499 
  

   ■0009392 
  

   •0010328 
  

   0011182 
  

   0012026 
  

   0012910 
  

  

  25 
  

   20 
  

   20 
  

   10 
  

   10 
  

   10 
  

   10 
  

   10 
  

   15 
  

   15 
  

   15 
  

   15 
  

   15 
  

   15 
  

  

  0143000 
  

  

  0141846 
  

  

  0140899 
  

  

  ■0139857 
  

  

  0139240 
  

  

  •0138710 
  

  

  •0138180 
  

  

  •0137620 
  

  

  •0137015 
  

  

  •0136101 
  

  

  •0135208 
  

  

  •0134272 
  

  

  •0133418 
  

  

  •0132574 
  

  

  •0131690 
  

   Average! 
  '6137 
  

  

  •5om 
  

  

  '5571 
  

   '6638 
  

   '5700 
  

   '576Jf. 
  

   '6080 
  

   •6610 
  

   '6683 
  

   '6578 
  

   '6976 
  

   '6398 
  

   '6365 
  

   '6658 
  

  

  3 
  ee 
  

   o 
  o 
  

  

  I 
  II 
  

  

  5^1^ 
  X 
  

  

  B. 
  Fibrous 
  Gypsum 
  (from 
  Notting- 
  

   ham). 
  17°-55 
  C. 
  ; 
  131 
  rev. 
  per 
  

   minute; 
  ?; 
  = 
  1500cc.; 
  S=25^5cm.2 
  

   20th 
  May, 
  1908. 
  

  

  Polished 
  block 
  again. 
  

  

  •001291 
  

  

  •001375 
  

  

  •001453 
  

  

  •0016096 
  

  

  •001700 
  

  

  0131690 
  

   0130852 
  

   •0130070 
  

   •0128504 
  

  

  •012760 
  

  

  Average 
  

  

  '6Jf07 
  

   •6002 
  

   '6050 
  

   '7054 
  

  

  ■6378 
  

  

  Excellent 
  surface, 
  

   transparent 
  like 
  glass. 
  

  

  For 
  S 
  = 
  20^4 
  cm.2 
  

   K' 
  = 
  -49 
  (average) 
  

  

  •40 
  (in 
  the 
  three 
  

  

  greatest 
  dilutions). 
  

  

  0001730 
  

   0002720 
  

   0003629 
  

   0004743 
  

   0005758 
  

   ■0006802 
  

   •0007797 
  

   •0008815 
  

   •0012586 
  

   •0015750 
  

   •0019265 
  

   •0021550 
  

   •0023860 
  

   •0026030 
  

   •0028300 
  

   0030740 
  

  

  •0142870 
  

   ■0141880 
  

   •0140971 
  

   •0139857 
  

   •0138842 
  

   •0137798 
  

   •0136805 
  

   •0135785 
  

   •0132014 
  

   •0128850 
  

   •0125345 
  

   •0123050 
  

   0120730 
  

   ■0118570 
  

   •0116300 
  

   •0113860 
  

  

  2-065 
  

   1-925 
  

   1-987 
  

   1-823 
  

   1-883 
  

   1-811 
  

   1-866 
  

   1-840 
  

   1-860 
  

   2-176 
  

   1-848 
  

   1-902 
  

   1-807 
  

   2-017 
  

   2-037 
  

  

  Polished 
  block 
  again. 
  

   0032010 
  _ 
  1-0112580 
  

  

  0034340 
  

   •0036250 
  

   0038.360 
  

   0042020 
  

   0044490 
  

   0046920 
  

   •0052740 
  

   •0054780 
  

   •0057120 
  

   0058870 
  

  

  16 
  

   15 
  

   16 
  

  

  23 
  

   18 
  

   19 
  

   44 
  

   15 
  

   17 
  

   13 
  

  

  0110250 
  

   0108350 
  

   0106240 
  

   0102580 
  

   0100110 
  

   •0097680 
  

   ■0091860 
  

   •0089820 
  

   •0087480 
  

  

  •0085730 
  

  

  Average 
  

  

  1-960 
  

   1'738 
  

   1-845 
  

  

  1-937 
  

   2-094 
  

   2-247 
  

  

  Excellent 
  surface. 
  

  

  For 
  S 
  = 
  20^4 
  cm.2 
  

   K' 
  = 
  1-7. 
  

  

  ^ 
  5 
  . 
  

  

  ^ 
  CO 
  

  

  o 
  o 
  

  

  I 
  II 
  

  

  bo 
  

  

  C. 
  Alabaster 
  (from 
  Leicester). 
  

   17° 
  ^8 
  C. 
  ; 
  131 
  rev. 
  per 
  minute 
  ; 
  

   r 
  = 
  1500cc. 
  ; 
  2 
  = 
  27-56 
  cm.^ 
  

   16th 
  May, 
  1908. 
  

  

  1-923 
  

  

  2-080 
  

  

  000093 
  

  

  0001830 
  

  

  0002802 
  

  

  ■0003730 
  

  

  0004665 
  

  

  0005662 
  

  

  ■0006654 
  

  

  ■0007603 
  

  

  •0008597 
  

  

  •0009524 
  

  

  •0011428 
  

  

  •0012320 
  

  

  •0013292 
  

  

  •0014278 
  

  

  •0016096 
  

  

  •0018540 
  

  

  •0020640 
  

  

  •0026380 
  

  

  •0029320 
  

  

  •0037800 
  

  

  •0143670 
  

  

  •0142770 
  

  

  •0141798 
  

  

  •0140870 
  

  

  •0139935 
  

  

  •0138938 
  

  

  •0137946 
  

  

  •0136997 
  

  

  •0136003 
  

  

  •0135076 
  

  

  •0133172 
  

  

  •0132280 
  

  

  •0131308 
  

  

  •0130322 
  

  

  •0128504 
  

  

  •0126060 
  

  

  •0123960 
  

  

  •0118220 
  

  

  •0115280 
  

  

  •0106800 
  

   Average 
  

  

  3-U3 
  

   3'413 
  

   S'287 
  

   3-333 
  

   3-580 
  

   3-574 
  

   3'450 
  

   3-640 
  

   3-430 
  

   3-547 
  

   3*357 
  

   3'573 
  

   3-763 
  

   3-513 
  

   3-597 
  

  

  -743 
  

   '778 
  

   -820' 
  

  

  3-534! 
  

  

  Pohshed 
  block 
  again. 
  

  

  0051860 
  

  

  12 
  

  

  0054190 
  

   0057410 
  

   0060620 
  

   0069260 
  

   0074070 
  

   ■0079040 
  

   ■0083560 
  

   •0087910 
  

   •0091830 
  

   ■0095880 
  

  

  15 
  

   15 
  

   46 
  

   30 
  

   29 
  

   31 
  

   30 
  

   30 
  

   30 
  

  

  0092740 
  

  

  ■0090410 
  

  

  •0087190 
  

  

  ■0083980 
  

  

  •0075340 
  

  

  •0070530 
  

  

  ■0065560 
  

  

  •0061040 
  

  

  •0056690 
  

  

  •0052770 
  

  

  •0048720 
  

   Average! 
  3 
  

  

  180^ 
  

   625 
  

   '750, 
  

  

  ■5^« 
  

  

  ■3oa 
  

  

  ■77^ 
  

   ■45T.\ 
  

   ■695' 
  

   '59i\ 
  

   ■99Si\ 
  

  

  '56i 
  

  

  Excellent 
  surface. 
  

  

  For 
  S 
  = 
  20^4 
  cm.s 
  

   K' 
  = 
  2-6 
  (average) 
  

   = 
  2*4 
  (in 
  the 
  three 
  

   greatest 
  dilutions; 
  

  

  __ 
  1 
  

  

  a 
  

  

  