AmAprn;iP893arm*}  Arsenious  Iodide.  183 
For  Use 
benzol  benzene 
toluol,  etc.  toluene,  etc. 
pyrocatechin  catechol 
r  e  s  o  r  c  i  n,  etc.  resorcinol,  etc. 
hydroquinone  (and  hydro- 
chinon  quinol 
orcin  orcinol 
hydrophlorone  phlorol 
phloroglucin  phloroglucol 
quercite  quercitol 
pinite  pinitol 
glycerin  glycerol 
erythrite,  erythroglucin, 
eryglucin,  erythroman- 
nite,  phycite  erythrol 
mannite  mannitol 
dulcite,  etc.  d  u  1  c  i  t  o  1,  etc. 
sorbite  sorbitol 
furfurol  f u r f u r a  1  d  e h y  d  e 
fucusol  f u c u s a  1 d e h  y  d  e 
anisol  m e t  h y  1  p  h  e  n a  t e 
phenetol  ethyl  phenate 
anethol  m e t h y 1  a  1 1  y  1  - p h e n o 1 
ARSENIOUS  IODIDE. 
By  D.  B.  Dott,  F.I.C.,  F.R.S.E. 
The  Pharmacopoeia  does  not  give  specific  directions  for  the 
preparation  of  this  compound,  but  states  that  it  is  "  obtained  by  the 
direct  combination  of  iodine  and  metallic  arsenium,  or  by  evaporat- 
ing to  dryness  an  aqueous  mixture  of  arsenious  and  hydriodic  acids." 
It  is  described  as  "  small  orange  colored  crystals,  readily  and  most 
entirely  soluble  in  water  and  rectified  spirit."  The  papers  of  Bam- 
berger1 and  others  give  much  information  about  arsenious  iodide, 
but  our  own  experience  and  examination  of  samples  give  sufficient 
additional  information  to  warrant  my  bringing  this  note  before  you. 
Commercial  specimens  are  met  with  which  contain  a  large  propor- 
Berichte,  xiv,  2,643. 
