522  Minutes  of  Pharmaceutical  Meetings.  {%lTi,mT' 
eating  coal  oils  were  used  for  the  purposes  of  adulteration,  he  took  the  specific- 
gravity  of  one  of  the  most  dense  in  the  market,  and  found  it  to  be  only  '883 
he  regarded  them  on  this  account  unfit  for  the  purpose. 
Prof.  Maisch  exhibited  three  samples  of  Pareira  brava,  two  of  which  differed 
from  the  kind  usually  seen  in  commerce  of  late  years,  and  a  sample  of  the  real 
Pareira,  which  has  been  proved  by  Mr.  Daniel  H anbury  to  be  produced  by 
Chondodendron  tomentosum.  The  three  spurious  pareiras,  all  of  which  were 
mentioned  in  Mr.  Hanbury's  paper,  were  the  usual  commercial  variety,  with 
the  layers  of  wood  in  more  or  less  excentric  layers  ;  a  sample  of  a  bright 
yellow  color  internally  and  with  the  wood  developed  almost  altogether  in  one- 
direction,  and  a  sample  nearly  tasteless,  the  wood  of  which  is  in  more  concen- 
tric layers ;  the  sources  of  these  three  kinds  are  unknown,  but  all  are  derived 
from  plants  of  the  order  Menispermacece. 
Mr.  Gaillard  spoke  of  having  received  a  sample  of  what  purported  to  be 
French  quinine,  from  a  friend  in  the  South,  who  had  been  offered  the  article  at 
a  very  low  price,  and  had  sent  him  a  portion  to  ascertain  why  it  could  be  sold' 
so  low.    It  proved  to  be  the  old  fraud — muriate  of  cinchonia. 
Prof.  Maisch  read  an  extract  from  the  "  Circular  of  the  Philadelphia  Drug: 
Exchange"  in  relation  to  this  subject,  as  follows  : 
Cinchonia  Muriate.  From  the  "  Druggists'  Circular,"  New  York,  October,  1873, 
we  extract  the  following  statement,  reported  in  the  Transactions  of  the  American 
Pharmaceutical  Association  at  Richmond  : 
"  Prof.  Maisch  drew  attention  to  the  fact  that  very  large  quantities  of  muriate  of i 
cinchonia  had  been  put  up  in  the  style  of  French  quinine,  and  having  an  imitation 
of  Pelletier's  label  upon  it,  and  that  it  had  been  extensively  introduced  in  the  South- 
ern States. 
11  Dr.  Squibb  said  that  some  of  the  manufacturers  of  quinia  were  in  part  respon- 
sible for  this  attempt  to  defraud  the  people,  as  they  in  the  course  of  their  manufac- 
ture accumulated  large  quantities  of  the  cinchonia  salts,  and  they  disposed  of  themi 
indiscriminately  to  any  who  applied  for  them." 
We  take  occasion  to  say  that,  so  far  as  American  manufacturers  of  sulphate  of, 
quinia  are  concerned  (1),  they  do  not  dispose  of  the  cinchonia  salts  indiscriminately 
to  any  who  apply  for  them,  but  only  to  regular  customers  who  pay  for  them  ;  andi 
(2),  so  far  from  being  responsible  for  this  attempt  to  defraud  the  people,  they  pur- 
posely avoid  handling  muriate  of  cinchonia — they  do  not  make  the  article. 
We  consider  that  this  statement  is  eminently  due  to  our  friends  who  make  sulph. 
quinia  here,  for  they  have  not  only  declined  making,  but  refuse  to  deal  in,  the  arti- 
cle of  muriate  of  cinchonia.  on  account  of  its  close  resemblance  to  sulphate  of  quinia. 
Muriate  of  cinchonia  is  largely  sold  in  Europe,  but  not  in  this  country,  so  far  as- 
sulph.  quinia  manufacturers  are  interested. 
It  was  suggested  that  advantage  might  be  taken  of  the  condition  of  aflfaira- 
to  ascertain  what  virtues  muriate  of  cinchonia  possesses  as  an  antiperiodic. 
Jos.  P.  Remington  introduced  the  subject  of  Diluted  Phosphoric  Acid,  andi 
gave  the  results  of  an  experiment  based  on  a  fact  mentioned  to  him  by  Prof. 
Maisch,  in  which  it  was  shown  that  diluted  phosphoric  acid,  made  from  the- 
phosphorus  direct,  according  to  the  13 .  S.  Pharmacopoeia,  would  make  a  clear 
solution  when  mixed  with  an  equal  quantity  of  tincture  of  chloride  of  iron,, 
whilst  that  made  from  the  glacial  phosphoric  acid  produced  a  precipitate  when 
similarly  mixed. 
Prof.  Maisch  stated  that  it  required  repeated  treatment  with  nitric  acid  in 
