%Je°cU i,  f™  \     Qlycerate  of  Sucrate  of  Lime,  etc.  557 
brine  only  the  sodium  is  precipitated,  with  none  of  the  other  metals 
of  the  mother  liquor.  Besides  this,  the  product  is  absolutely  free 
from  all  sulphur  compounds,  the  soda  is  of  a  high  grade,  the  appara- 
tus and  utensils  are  very  simple,  there  is  a  great  saving  of  labor  and 
fuel,  and  no  noxious  gases  and  waste  products  are  produced,  which  is 
of  importance  from  a  sanitary  point  of  view.  The  only  weak  point 
of  the  ammonia  process  is  the  loss  of  the  chlorine,  which  is  converted 
into  worthless  chloride  of  calcium. 
The  effect  which  the  general  introduction  of  the  new  soda  process 
will  exert  upon  large  chemical  industries  in  general,  and  especially 
upon  the  consumption  of  sulphur,  the  manufacture  of  sulphuric  acid, 
and  the  price  of  muriatic  acid  and  chloride  of  lime,  cannot  be  over- 
looked.— Journ.  of  App.  Chem.,  Nov.,  1873. 
OLYCERATE  OF  SUCRATK  OF  LIME  AND  ITS  EMPLOY- 
MENT IN  THE  PREPARATION  OF  CHALK  LINIMENT.* 
By  M.  Latour. 
A  recent  explosion  at  Mont  Valerien,  the  victims  of  which  were 
treated  in  the  military  hospital  of  Saint-Martin,  where  the  author  is 
pharmacien  principal,  gave  him  an  opportunity  on  a  large  scale  of 
profiting  by  a  rapid  method  of  preparing  an  oleo-calcareous  liniment, 
which  he  has  practiced  for  some  time  with  satisfactory  results.  It  is 
specially  when  it  is  necessary  to  prepare  such  a  compound  quickly 
and  in  considerable  quantities  that  he  considers  the  process  presents 
real  advantages.  The  new  ingredients  also  that  he  introduces  give  the 
compound  special  qualities,  which  he  thinks  would  render  it  suitable 
for  employment  in  a  great  number  of  cases, — such  as  severe  burns, 
erythema,  erysipelas,  variable  eruptions,  chilblains,  etc. — where  the 
skin  is  the  seat  of  more  or  less  inflammatory  symptoms. 
At  first  M.  Latour  employed  the  solution  of  sucrate  of  lime ;  but 
in  order  to  avoid  the  formation  of  carbonate  of  lime  through  the  ab- 
sorption of  carbonic  acid  from  the  air,  he  tried  the  addition  of 
glycerin.  This  led  him  to  study  the  solubility  of  sucrate  of  lime  in 
glycerin,  and  finally  to  construct  a  formula  representing  nearly  the 
limit  of  this  solubility  and  furnishing  a  dense  product  of  constant 
composition,  to  which  he  has  given  the  name  of  saturated  glycerate 
*  Repertoire  de  Pharmacie  [n.  s.],  vol.  i,  p.  557. 
