﻿296 
  Mr. 
  E. 
  C. 
  Grey. 
  The 
  Enzymes 
  of 
  B. 
  coli 
  communis 
  

  

  Table 
  L 
  

  

  Data 
  for 
  experiments 
  on 
  the 
  decomposition 
  of 
  glucose 
  and 
  mixtures 
  of 
  

   glucose 
  and 
  calcium 
  formate, 
  by 
  B. 
  coli 
  communis. 
  

  

  

  0. 
  

  

  1. 
  

  

  2. 
  

  

  3. 
  

  

  4. 
  

  

  Weight 
  ot 
  glucose 
  at 
  the 
  start 
  

  

  20 
  

  

  00 
  

  

  20 
  

  

  •72 
  

  

  20 
  

  

  •00 
  

  

  19 
  

  

  •68 
  

  

  16 
  - 
  25 
  

  

  Weight 
  of 
  formic 
  acid 
  

  

  1 
  

  

  •320 
  

  

  1 
  

  

  •325 
  

  

  3 
  

  

  •312 
  

  

  3 
  

  

  •750 
  

  

  5*244 
  

  

  W 
  eight 
  of 
  glucose 
  at 
  the 
  end 
  

  

  4 
  

  

  •73 
  

  

  7 
  

  

  •95 
  

  

  3 
  

  

  •13 
  

  

  4 
  

  

  •76 
  

  

  Nil 
  

  

  

  

  

  •4233 
  

  

  1 
  

  

  •708 
  

  

  2 
  

  

  •282 
  

  

  1 
  

  

  •380 
  

  

  4-269 
  

  

  Weight 
  of 
  formic 
  acid 
  fermented... 
  

  

  

  

  

  

  1 
  

  

  •030 
  

  

  2 
  

  

  •370 
  

  

  0-975 
  

  

  Weight 
  of 
  glucose 
  fermented 
  

   Weight 
  of 
  hydrogen 
  produced 
  

  

  15 
  

  

  •27 
  

  

  12 
  

  

  •77 
  

  

  16 
  

  

  •87 
  

  

  14 
  

  

  •92 
  

  

  16-52 
  

  

  

  

  •0495 
  

  

  

  

  •1530 
  

  

  

  

  •3234 
  

  

  

  

  •2250 
  

  

  -1260 
  

  

  Weight 
  of 
  hydrogen 
  corresponding 
  

  

  

  

  

  

  

  

  •0453 
  

  

  

  

  1017 
  

  

  -0417 
  

  

  to 
  added 
  formate 
  fermented 
  

  

  

  

  

  

  

  

  

  

  

  Weight 
  of 
  hydrogen 
  derived 
  from 
  

  

  

  

  •0495 
  

  

  

  

  •1530 
  

  

  

  

  •2781 
  

  

  

  

  •1233 
  

  

  -0843 
  . 
  

  

  the 
  glucose 
  fermented 
  

  

  

  

  

  

  

  

  

  

  

  Weight 
  of 
  carbon 
  dioxide 
  evolved 
  

  

  5 
  

  

  •901 
  

  

  7 
  

  

  •003 
  

  

  9 
  

  

  •953 
  

  

  8 
  

  

  •448 
  

  

  4-950 
  

  

  Weight 
  of 
  carbon 
  dioxide 
  corre- 
  

  

  

  

  

  

  

  

  •986 
  

  

  2 
  

  

  ■266 
  

  

  0-933 
  

  

  sponding 
  to 
  the 
  added 
  formate 
  

  

  

  

  

  

  

  

  

  

  

  fermented 
  

  

  

  

  

  

  

  

  

  

  

  Carbon 
  dioxide 
  from 
  acids 
  on 
  chalk 
  

  

  3 
  

  

  •495 
  

  

  3 
  

  

  •080 
  

  

  2 
  

  

  •160 
  

  

  

  

  726 
  

  

  1 
  243 
  

  

  Carbon 
  dioxide 
  from 
  the 
  glucose 
  . 
  . 
  . 
  

  

  2 
  

  

  •497 
  

  

  3 
  

  

  ■922 
  

  

  6 
  

  

  •807 
  

  

  5 
  

  

  460 
  

  

  2-770 
  

  

  Table 
  II. 
  

  

  Products 
  derived 
  from 
  glucose 
  by 
  the 
  action 
  of 
  B. 
  coli 
  communis 
  in 
  the 
  

   presence 
  of 
  calcium 
  formate. 
  Allowance 
  has 
  been 
  made 
  for 
  the 
  carbon 
  

   ■dioxide 
  and 
  hydrogen 
  which 
  have 
  resulted 
  from 
  the 
  decomposition 
  of 
  the 
  

   calcium 
  formate 
  added. 
  

  

  

  

  Produots 
  from 
  the 
  

  

  glucose. 
  

  

  

  

  

  G-lucose 
  

   alone. 
  

  

  Glucose 
  with 
  calcium 
  formate. 
  

  

  

  0. 
  

  

  1. 
  

  

  2. 
  

  

  3. 
  

  

  4. 
  

  

  

  -050 
  

  

  

  

  153 
  

  

  -278 
  

  

  123 
  

  

  

  

  084 
  

  

  2-497 
  

  

  3 
  

  

  ■922 
  

  

  6-807 
  

  

  5 
  -460 
  

  

  2 
  

  

  770 
  

  

  

  0-422 
  

  

  

  

  •380 
  

  

  

  

  

  

  

  2 
  952 
  

  

  2 
  

  

  •400 
  

  

  4-212 
  

  

  2-149 
  

  

  2 
  

  

  505 
  

  

  

  4-347 
  

  

  4 
  

  

  •030 
  

  

  3-654 
  

  

  2-770 
  

  

  8 
  

  

  533 
  

  

  

  3-103 
  

  

  1 
  

  

  -534 
  

  

  0-549 
  

  

  1-770 
  

  

  1 
  

  

  823 
  

  

  

  1 
  686 
  

  

  

  

  •640 
  

  

  0-244 
  

  

  2-560 
  

  

  

  

  466 
  

  

  

  15 
  -06 
  

  

  13 
  

  

  •06 
  

  

  15 
  -74 
  

  

  14-83 
  

  

  16 
  

  

  •18 
  

  

  

  15 
  -27 
  

  

  12 
  

  

  77 
  

  

  16 
  87 
  

  

  14*92 
  

  

  16 
  

  

  •52 
  

  

  

  2 
  04 
  

  

  1 
  

  

  •17 
  

  

  1 
  11 
  

  

  2 
  -01 
  

  

  1 
  

  

  •50 
  

  

  