446  BullocTcs  Blood  in  Medicine.        jA  o^'S?*11" 
an  excess  of  acid  prevents  the  crystallization  of  the  salt,  and  a  yellow, 
somewhat  greenish  and  deliquescent  mass  is  obtained.  After  having 
failed  twice,  I  succeeded  well  with  the  following  exact  proportions  : 
Quinia  sulphate,  basic,      ....    150  grm. 
Rain  water,  ......  2  litres. 
Sulphuric  acid,  66°,  .....  22  grm. 
The  acid  is  mixed  with  the  water  in  a  porcelain  capsule,  the  sul- 
phate is  then  added,  and  the  mixture  occasionally  agitated  until  dis- 
solution has  taken  place,  which  required  about  an  hour  at  a  tempera- 
ture of  29°  C.  After  filtering,  the  evaporation  is  continued  till  the 
liquor  is  reduced  to  600  grm. ;  24  hours  afterwards  the  crystals  are 
taken  out,  and  the  mother  liquor  remaining  is  evaporated  a  second 
time  in  order  to  obtain  more  crystals.  The  mother  liquor  finally  re- 
maining is  used  for  precipitating  the  quinia. 
An  Elixir  of  Citro-Lactate  of  Iron. — This  liquor,  which  was  im- 
ported in  this  city  years  ago  as  a  special  preparation  of  Dr.  Thermes* 
of  Paris,  was  prepared  by  me  after  the  following  formula : 
Liquor  citrate  of  iron  and  ammonia,  .        .      27  grm. 
Lactate  of  iron,    .....  4  grm. 
Rain  water,   1400  grm. 
White  sugar,       .....       300  grm. 
Aromatic  spirit  of  Garus,  ....    200  grm. 
The  lactate  is  dissolved  in  the  water,  the  other  substances  are 
added,  and  when  the  sugar  is  dissolved  the  liquid  is  filtered. 
Lemon  Syrup. — 
Simple  syrup,     .       .       .       .       .50  centilitres. 
Lemon  juice  purified,       ...       45  grm. 
The  syrup  is  concentrated  to  33°  by  boiling,  and  when  it  is  cool 
the  lemon  juice,  clarified  by  repose,  is  added  to  it.    One  ounce  and 
a  half  of  this  syrup  and  eight  ounces  of  water  will  make  a  very  agree- 
able lemonade. 
Merida,  Yucatan,  August  28,  1872. 
THE  USE  OF  BULLOCK'S  BLOOD  IN  MEDICINE. 
By  William  C.  Bakes. 
In  the  last  number  of  the  Journal,  on  page  410,  appeared  an  ex- 
tract from  the  Pharm.  Journ.  and  Trans.,  July  27,  1872,  from  a 
