212 
REMARKS  ON  SPURIOUS  WINTER'S  BARK. 
These  experiments  show  us  at  any  rate, 
1.  That  iodide  of  iron  dissolves  more  or  less  readily  the  inso- 
luble iodides  of  some  heavy  metals,  especially  of  copper,  lead, 
silver  and  mercury. 
2.  That  the  presence  of  copper  during  the  process  of  preparing 
the  syrup  causes  the  same  to  be  contaminated  with  that  poison- 
ous metal,  although  iron  may  have  been  in  large  excess. 
3.  That  iron  decomposes  all  iodide  of  copper  thus  dissolved, 
only  after  a  prolonged  contact. 
The  practical  results  will  be, — 
1.  To  guard  against  the  presence  of  any  metal  but  iron  during 
the  preparation  of  this  officinal  syrup. 
2.  To  be  able  to  combine  the  action  of  mercury  and  iron  with 
iodine  in  a  dissolved  state.  On  this,  however,  some  more  ex- 
periments are  needed. 
Philadelphia,  March,  1857. 
REMARKS  IN  REFERENCE  TO  THE  SPURIOUS  WINTER'S 
BARK  DESCRIBED  IN  THE  JANUARY  NUMBER  OF 
THIS  JOURNAL. 
By  Daniel  Hanbury. 
London,  Feb.  14,  1857. 
To  the  Editor  of  the  American  Journal  of  Pharmacy  : — 
Sir: — Having  perused  with  some  interest  the  communication 
of  E.  S.  Wayne  in  your  January  number,  relative  to  a  spurious 
Winter  s  bark,  recently  offered  for  sale  in  New  York  and 
Philadelphia,  I  am  induced  to  address  you  a  few  remarks  upon 
it,  because  I  am  convinced  that  the  conclusion  that  Mr.  Wayne 
has  drawn,  is  not  that  at  which  he  would  have  arrived,  if  he  had 
possessed  authentic  specimens  of  the  barks  to  which  he  refers. 
Discovering  that  the  new  Winter's  bark  had  been  imported 
from  the  west  coast  of  South  America,  Mr.  Wayne  refers  to  the 
description  of  Malambo  bark  as  given  in  the  Pharmaceutical 
Journal  and  Transactions*  and  in  other  works,  and  finding  a 
•certain  coincidence  in  the  recorded  physical  characters  of  the 
*  Mr.  Wayne  quotes  this  periodical  under  the  title  of  the  "  London 
Journal  of  Pharmacy." 
