144 
Aloes  in  Pharmaceutical  Preparations. 
f^m.  Jour.  Pharm. 
1      March,  1885, 
Having  thus  proved  tnat  the  test  is  applicable  to  any  variety  of 
aloeSj  it  remained  to  be  determined  whether  the  presence  of  aloes  in 
complex  mixtures  could  be  proved,  and  also  whether  any  other  sub- 
stance will  give  the  same  reaction.  With  this  object  we  have  carefully 
examined  a  very  large  number  of  preparations,  first  those  which  were 
known  to  contain  aloes,  then  other  extracts,  etc. 
The  following  table  shows  the  results : 
Cripps  and  Cripps  and  Dymond's  test 
Name  of  preparation.  Dymond's  test.  with  AmHO. 
Barbaloin.      Purplish-red   Red. 
Jafferabad  aloiii   Purplish-red   Red. 
Ext.  aloes,  barb   Crimson   Red. 
Ext.  aloes,  socot   Crimson   Red. 
Dec.  aloes  comp   Orange-red   Red. 
Vin.  aloes   Orange-red   Red. 
Tinct.  aloes   Orange-red   Red. 
Pil.  aloes,  barb     Crimson   Red. 
Pil.  aloes,  socot.  (1)   Pale  crimson   Red. 
Pil.  aloe-i,  socot.  (2)   Orange-red   Red. 
Pil.  aloes  et  assaf.  (1)   Pale  crimson   Red. 
Pil.  aloes  et  assaf.  (2)   Orange-red   Red. 
Pil.  aloes  et  ferri   Crimson   Red. 
Pil.  aloes  et  myrrh   Orange   Red. 
Pil.  coloc.  coinp   Crimson   Red. 
Pil.  coloc.  c.  hyos   Orange-red   Red. 
Pil.  cambog.  comp     Orange-red   Red. 
Pil.  rhei  comp   Crimson   Red. 
Pil.  ipecac,  c.  scilh\   Pale  yellow   Yellow. 
Pil.  saponis  comp   Yellow   Yellow. 
Pulv.  sennje   Orange-red   Red. 
Ext.  aconiti   Yellow   Yellow. 
Ext.  bellad....-   Yellow   Yellow. 
Ext.  colchici   Pale  yellow   Pale  orange. 
Ext.  coloc.  simp   Pale  yellow   Yellow. 
Ext.  coloc.  comp   Orange-red   Red. 
Ext.  conii   Brownish-yellow   Yellow. 
Ext.  frangul?e   Orange-red   Red. 
Ext.  gentiante   Pale  yellow   Yellow. 
Ext.  jalapa?   Pale  yellow   Yellow. 
Ext.  iupuli   Orange-yellow   Yellow. 
Ext.  nueis  vom   Orange   Yellow. 
Ext.  opii   Orange   Orange. 
Ext.  quassife   Deep  yellow   Yellow. 
Ext.  rhei   Orange-red   Red. 
Ext.  taraxaci   Pale  yellow   Yellow. 
Fel  bovin.  purif.   Yellow   Yellow. 
Rad.  rhei   Orange-red   Red. 
Salicin   Pale  yellow   Nearly  colorless. 
Croci  stig   Yellowish   Yellow. 
Acid,  chrysophanic   Deep  orange   Red. 
Resin,  scammon   Pale  yellow   Yellow. 
From  the  above  table  it  will  be  seen  that  though  the  presence  of 
aloes  never  fails  to  make  itself  manifest,  rhubarb  and  substances  con- 
taining chrysophanic  acid  behave  in  a  similar  way ;  but  a  nearly  col- 
