﻿CRYSTALLINE 
  CONSTITUENTS 
  OF 
  OPIUM. 
  

  

  375 
  

  

  I 
  have 
  placed 
  these 
  results 
  in 
  juxtaposition 
  with 
  the 
  calculated 
  numbers 
  of 
  

   ethylamine 
  for 
  the 
  purpose 
  of 
  shewing 
  that 
  it 
  consisted 
  of 
  a 
  mixture 
  of 
  the 
  pla- 
  

   tinum 
  salts 
  of 
  that 
  base 
  and 
  of 
  methylamine. 
  The 
  presence 
  of 
  the 
  latter 
  base 
  was 
  

   also 
  determined, 
  in 
  this 
  case, 
  by 
  dissolving 
  the 
  salt 
  in 
  water 
  and 
  twice 
  crystallising, 
  

   when 
  the 
  small 
  quantity 
  obtained 
  gave 
  40*32 
  per 
  cent, 
  of 
  platinum, 
  indicating 
  

   that 
  in 
  this 
  way 
  a 
  separation 
  of 
  the 
  two 
  might 
  have 
  been 
  effected 
  if 
  the 
  quantity 
  

   of 
  material 
  had 
  been 
  sufficiently 
  large 
  to 
  admit 
  of 
  additional 
  crystallisations. 
  

  

  Some 
  observations 
  lead 
  me 
  to 
  suppose 
  that 
  these 
  are 
  not 
  the 
  only 
  bases 
  formed, 
  

   but 
  that 
  others 
  with 
  much 
  higher 
  atomic 
  weights 
  are 
  occasionally 
  produced. 
  A 
  

   serious 
  difficulty, 
  however, 
  in 
  the 
  way 
  of 
  such 
  investigations, 
  is 
  found 
  in 
  the 
  de- 
  

   compositions 
  which 
  all 
  these 
  bases 
  undergo 
  in 
  contact 
  with 
  nitrous 
  acid, 
  to 
  which 
  

   they 
  are 
  exposed 
  during 
  the 
  action 
  of 
  nitric 
  acid 
  upon 
  the 
  original 
  substance. 
  I 
  

   propose, 
  however, 
  to 
  pursue 
  the 
  subject 
  further, 
  and 
  hope 
  to 
  find 
  a 
  means 
  of 
  avoid- 
  

   ing 
  this 
  difficulty. 
  

  

  I 
  shall 
  conclude 
  this 
  paper 
  with 
  a 
  tabular 
  statement 
  of 
  the 
  substances 
  ex- 
  

   amined 
  in 
  it, 
  and 
  their 
  formulae. 
  

  

  Narceine, 
  . 
  

  

  Hydrochlorate 
  of 
  narceine, 
  

  

  Platinochloride 
  of 
  narceine, 
  

  

  RoBiauET's 
  narceine, 
  . 
  

  

  Thebaine, 
  . 
  

  

  Hydrochloride 
  of 
  thebaine, 
  

  

  Platinochloride 
  of 
  thebaine, 
  

  

  Teropiammon, 
  

  

  Opianyl, 
  

  

  Hydrate 
  of 
  Opianyl, 
  

  

  Opianic 
  acid, 
  

  

  Opianic 
  ether, 
  

  

  Hemipinic 
  acid, 
  . 
  

  

  Acid 
  hemipinate 
  of 
  potass, 
  

  

  Hemipinate 
  of 
  silver, 
  . 
  

  

  Hemipinovinic 
  acid, 
  

  

  Apophyllic 
  acid, 
  

  

  Apophyllate 
  of 
  silver, 
  

  

  Methylamine, 
  

  

  Ethylamine, 
  

  

  C 
  46 
  H 
  29 
  N0 
  18 
  HC1 
  Pt 
  Cl 
  2 
  

  

  C 
  46 
  H 
  29 
  N0 
  18 
  

   C 
  46 
  H 
  29 
  N0 
  18 
  HC1 
  

   C 
  ie 
  H 
  29 
  N0 
  18 
  H( 
  

   C 
  32 
  H 
  19 
  NO 
  10 
  (?) 
  

  

  C 
  38 
  H 
  21 
  N0 
  6 
  

  

  C 
  38 
  H 
  21 
  N0 
  6 
  HC1 
  + 
  2 
  HO 
  

  

  C 
  38 
  H 
  21 
  N0 
  6 
  HC1 
  Pt 
  Cl 
  2 
  + 
  2 
  HO 
  

  

  C 
  60 
  H 
  29 
  N0 
  2(1 
  

  

  C 
  20 
  H 
  10 
  8 
  

  

  C 
  20 
  H 
  10 
  O 
  8 
  + 
  HO 
  

  

  ^20 
  -""lO 
  ^10 
  

  

  C 
  4 
  H 
  5 
  O 
  C 
  20 
  H 
  9 
  9 
  

  

  C 
  20 
  H 
  10 
  12 
  

  

  KO 
  HO 
  C 
  20 
  H 
  8 
  O 
  10 
  

  

  2AgOC 
  20 
  H 
  8 
  O 
  10 
  

  

  HO 
  C 
  4 
  H 
  5 
  O 
  C 
  20 
  H 
  8 
  O 
  10 
  

  

  C 
  ie 
  H 
  7 
  N0 
  8 
  

  

  AgO 
  C 
  16 
  H 
  G 
  N0 
  7 
  

  

  C 
  2 
  H 
  5 
  N 
  

  

  C 
  4 
  H 
  7 
  N 
  

  

  VOL. 
  XX. 
  PART 
  III. 
  

  

  O 
  I 
  

  

  