﻿258 
  DR 
  ANDERSON 
  ON 
  THE 
  PRODUCTS 
  OF 
  THE 
  

  

  {7 
  - 
  850 
  grains 
  dried 
  in 
  vacuo 
  gave 
  

   6-373 
  ... 
  of 
  carbonic 
  acid, 
  and 
  

   1-905 
  ... 
  of 
  water. 
  

  

  3-112 
  grains 
  gave 
  2*32 
  grains 
  of 
  chloride 
  of 
  silver. 
  

   7-684 
  ... 
  gave 
  4-090 
  grains 
  mercury. 
  

  

  

  Experiment. 
  

   22-14 
  

  

  Calculation. 
  

  

  

  Carbon, 
  

  

  22-05 
  C 
  u 
  

  

  84 
  

  

  Hydrogen, 
  . 
  

  

  2-69 
  

  

  2-36 
  H 
  9 
  

  

  9 
  

  

  Nitrogen, 
  . 
  

  

  • 
  

  

  3-69 
  N 
  

  

  14 
  

  

  Chlorine, 
  

  

  18-43 
  

  

  18-64 
  Cl 
  2 
  

  

  71 
  

  

  Mercury, 
  . 
  

  

  53-22 
  

  

  53-26 
  Hg 
  9 
  

  

  202 
  

  

  100-00 
  380 
  

  

  On 
  another 
  occasion 
  results 
  were 
  obtained 
  more 
  nearly 
  corresponding 
  with 
  

   the 
  formula 
  3HgCl 
  + 
  C 
  14 
  R 
  t) 
  N; 
  and 
  intermediate 
  results 
  were 
  also 
  obtained, 
  but 
  

   as 
  the 
  existence 
  of 
  these 
  different 
  compounds 
  appeared 
  to 
  me 
  to 
  be 
  fatal 
  to 
  their 
  

   employment 
  as 
  a 
  means 
  of 
  purifying 
  the 
  base, 
  I 
  did 
  not 
  attempt 
  to 
  pursue 
  the 
  

   subject 
  further. 
  The 
  separation 
  of 
  lutidine 
  from 
  the 
  other 
  bases 
  was 
  also 
  at- 
  

   tempted 
  by 
  forming 
  other 
  salts, 
  but 
  none 
  were 
  found 
  to 
  answer, 
  all 
  being 
  highly 
  

   soluble 
  except 
  the 
  carbazotate, 
  which 
  crystallizes 
  in 
  beautiful, 
  long, 
  yellow 
  needles, 
  

   a 
  property 
  which, 
  however, 
  is 
  unfortunately 
  possessed 
  by 
  the 
  carbazotates 
  of 
  all 
  

   the 
  other 
  bases. 
  

  

  From 
  all 
  these 
  experiments, 
  it 
  appears 
  that 
  I 
  have 
  been 
  able 
  to 
  substantiate 
  

   the 
  existence 
  of 
  two 
  bases, 
  pyridine 
  and 
  lutidine, 
  although 
  it 
  has 
  been 
  as 
  yet 
  

   impossible 
  to 
  obtain 
  the 
  bases 
  themselves 
  in 
  a 
  state 
  of 
  satisfactory 
  purity. 
  I 
  am 
  

   inclined, 
  however, 
  to 
  think 
  that 
  the 
  platinum 
  salts, 
  from 
  their 
  greater 
  stability, 
  

   and 
  the 
  ease 
  and 
  regularity 
  with 
  which 
  they 
  crystallize, 
  will 
  afford 
  means 
  of 
  

   purification, 
  but 
  I 
  have 
  been 
  hitherto 
  deterred 
  from 
  trying 
  this 
  method 
  on 
  the 
  

   large 
  scale 
  by 
  the 
  enormous 
  quantity 
  of 
  platinum 
  which 
  would 
  be 
  requisite 
  for 
  

   the 
  purpose. 
  

  

  It 
  appears, 
  then, 
  that 
  Dippel's 
  oil 
  contains 
  two 
  series 
  of 
  bases, 
  one 
  that 
  is 
  

   homologous 
  with 
  ammonia, 
  the 
  other 
  a 
  series 
  peculiar 
  to 
  that 
  oil, 
  homologous 
  

   with 
  one 
  another, 
  and 
  remarkable 
  for 
  their 
  isomerism 
  with 
  the 
  series 
  of 
  which 
  

   aniline 
  is 
  the 
  type. 
  Thus 
  we 
  have 
  — 
  

  

  Pyridine, 
  . 
  . 
  . 
  C 
  10 
  H. 
  N 
  

  

  Picoline, 
  . 
  . 
  . 
  C 
  J2 
  H 
  7 
  N 
  . 
  . 
  . 
  Aniline. 
  

  

  Lutidine, 
  . 
  . 
  . 
  C 
  u 
  H 
  9 
  N 
  . 
  . 
  . 
  Toluidine. 
  

  

  And 
  it 
  is 
  probable 
  that 
  the 
  series 
  existing 
  in 
  Dippel's 
  oil 
  does 
  not 
  cease 
  here, 
  as 
  I 
  

   have 
  found 
  that 
  the 
  bases, 
  with 
  higher 
  boiling 
  points, 
  give 
  a 
  steadily 
  decreasing 
  

   per-centage 
  of 
  platinum. 
  It 
  is 
  impossible, 
  in 
  the 
  present 
  state 
  of 
  the 
  investiga- 
  

   tion, 
  to 
  give 
  any 
  opinion 
  as 
  to 
  the 
  intimate 
  constitution 
  and 
  relations 
  of 
  these 
  two 
  

   groups 
  of 
  what 
  I 
  may 
  call 
  isohomologous 
  bases. 
  The 
  most 
  obvious 
  explanation, 
  

   however, 
  would 
  be 
  to 
  suppose 
  the 
  new 
  bases 
  to 
  be 
  imidogen 
  or 
  nitrile 
  bases, 
  

  

  