ARTIFICIAL  VICHY  WATER. 
407 
For  one  dozen  bottles  of  Vichy  water. 
Take  of  Bicarbonate  of  soda,       .       .        13-5  drms.  (Troy.) 
Chloride  of  sodium,         .       .        154  grains  « 
Chloride  of  calcium,  (fused  and  dry)  36-0  " 
Sulphate  of  soda,  crystallized  68-5  " 
Sulphate  of  magnesia,     "  22-7  " 
Tartrate  of  iron  and  potassa,  0-83  " 
Water,  two  pints. 
Carbonic  acid  water,  ten  pints. 
Prepare  twelve  pint  bottles  with  good  corks.  Dissolve  the 
chloride  of  calcium  in  six  fluid  ounces  of  water  and  set  it  aside. 
Then  dissolve  the  salts  of  soda  and  the  salt  of  iron  together  in 
the  remainder  of  the  water,  add  the  epsom  salts,  and  when  dis- 
solved, filter.  Divide  this  solution  equally  among  the  twelve 
bottles,  and  then  having  added  half  a  fluid  ounce  of  the  solution 
of  chloride  of  calcium  to  each,  proceed  to  fill  them  with  carbonic 
acid  water  (drawn  quickly  from  the  fountain,)  cork  securely  and 
tie  over. 
On  adding  the  chloride  of  calcium  to  the  other  solution  a  gela- 
tinous precipitate  of  carbonate  of  lime  is  formed  which  dissolves 
immediately  though  the  agency  of  the  carbonic  acid  water.  It  is 
better  to  add  the  chloride  as  you  proceed  than  to  mix  all  at  once, 
as  the  solution  of  the  precipitate  is  rapid  in  proportion  to  its 
gelatinous  condition. 
For  a  Fountain  of  Twelve  Gallons. 
When  made  on  a  large  scale,  the  following  recipe  may  be  em- 
ployed to  make  a  twelve  gallon  fountain. 
Take  of  Bicarbonate  of  soda,        .       .       13  J  ounces  (Troy.) 
Chloride  of  sodium,         .       .       123-2  grains. 
Chloride  of  Calcium,  (fused  and  dry)  288-0  " 
Sulphate  of  soda,  crystallized,         548-0  « 
Sulphate  of  magnesia,    "  181-6  " 
Tartrate  of  iron  and  potassa,    .  6-64  " 
Water,    .  ...      twelve  gallons. 
Dissolve  the  soda  salts  and  the  iron  salt  in  a  portion  of  the 
water  filter  and  pour  it  in  the  fountain,  then  add  the  epsom  salts 
previously  dissolved,  and  lastly  the  chloride  of  calcium  in  the  re- 
mainder of  the  water.    The  fountain  is  now  to  be  charged  as 
