VARIETIES. 
375 
tate  of  lead  likewise  produce  precipitates  ;  tartrate  of  antimony, 
tannin,  yellow  and  red  prussiate,  none.  The  minimum  dose  of 
the  pure  acid  was  found  to  be  about  one  and  a  half  grains,  which 
causes  several  stools,  with  decided  griping. — Druggists'  Circular, 
June,  1866. 
barictic0. 
On  the  adulteration  of  Resin  of  Jalap  with  Aloes.-— Daenen  (Bull. 
Soc.  Pharm.  Brux,)  calls  attention  to  a  specimen  of  resin  of  jalap,  which 
he  was  led  to  suspect,  by  its  bitterness,  not  to  be  pure.  It  was  friable, 
and  gave  a  yellowish  gray  powder  ;  nearly  insoluble  in  ether,  sulphuretof 
carbon  or  chloroform  ;  entirely  soluble  in  alcohol  of  28°  Baume,  and  par- 
tially soluble  (30  per  cent.)  in  distilled  water,  liquid  ammonia,  and  an 
aqueous  solution  of  carbonate  of  soda,  when  pure  resin  of  jalap  is  insolu- 
ble in  these  three  last  menstrua.  It  also  afforded  carbozotic  acid  by 
the  action  of  nitric  acid,  and  was  not  affected  by  chlorinated  soda  solution 
in  a  manner  to  indicate  guaiac. 
Syrup  of  Copaiba  and  Syrup  of  Cubebs  in  diphtheria  and  croup,  as 
used  by  M.  Trideau. — The  following  is  the  recipe  for  the  syrup  : 
Take  of  Copaiba,  two  troy  ounces  and  a  half. 
Gum  Arabic,  in  powder,  five  drachms. 
Water,  twelve  and  a  half  drachms. 
Essence  of  Peppermint,  sixteen  drops. 
Syrup  of  Sugar,  twelve  and  a  half  troy  ounces. 
Bmulsionize  the  copaiba  with  the  water  and  gum,  then  add  the  essence, 
and  lastly  the  syrup,  and  mix.    For  adults  half  a  table-spoonful  of  the 
syrup  of  copaiba  every  two  hours  ;  besides  a  table-spoonful  of  simple  syrup 
used  as  the  vehicle  for  15  grains  of  powdered  cubebs  recently  powdered, 
given  also  every  two  hours  in  the  intervals  of  the  dosing  with  copaiba. 
In  serious  cases  the  doses  of  cubebs  may  be  carried  to  six  drachms  in 
twenty-four  hours,  and  for  children  three  drachms. 
It  sometimes  happens,  after  twenty-four  hours'  use,  the  copaiba  will  not 
be  tolerated  by  the  stomach  ;  when  it  should  be  temporarily  suspended. 
Two  or  three  drops  of  laudanum  in  every  ounce  of  syrup  corrects  this 
difficulty  to  a  great  extent.  This  medication  was  employed  by  Dr.  Tri- 
deau in  the  prevalence  of  a  serious  epidemic  in  the  department  of  May- 
enne,  with  great  success. — Repertoire  de  Pharmacie,  Mars,  1866,  p.  357. 
