EXTRACTION  AND  PRESERVATION   OF  AROMATA,  47 
as  a  substitute  for  quinine  without  the  sanction  of  the  prescribe!*. 
The  same  remark  applies  to  the  unbleached  variety  of  Mr.  J. 
Hulle. 
A  sample  from  Germany  was  also  examined  and  found  to  be 
exceedingly  impure,  but  as  it  was  not  an  original  package,  and 
without  any  name,  it  was  thought  inexpedient  to  bring  it  before 
the  notice  of  the  members  of  the  Pharmaceutical  Conference. 
It  is  very  gratifying  to  be  able  to  affirm  that  sulphate  of  qui- 
nine, if  purchased  in  bottles  or  sealed  packets,  as  sent  out  by 
the  makers,  or  obtained  through  our  well-known  wholesale  houses, 
is  commercially  pure  and  quite  fit  for  medicinal  use. 
It  must  be  the  chemist's  own  fault  if  he  is  imposed  upon,  and 
not  supplied  with  an  article  of  sufficient  purity. — London 
Pharm.  Journal,  Nov.  1,  1864. 
ON  THE  EXTRACTION  AND  PRESERVATION  OF  AROMATA. 
By  Charles  R.  C.  Tichborne,  F.C.S. 
CHEMIST  TO  THE  APOTHECARIES'  HALL  OP  IRELAND,  ETC. 
(Read  at  the  Bath  Meeting  of  the  British  Pharmaceutical  Conference,  Sept.,  18(54.)  , 
Some  time  ago  I  noticed  in  my  garden  a  vegetable  curiosity 
of  some  interest.  As  I  was  desirous  of  preserving  this  lusus 
naturce,  I  submerged  it  in  some  weak  glycerine,  considering 
that  that  fluid  would  be  less  likely  to  shrivel  the  tender  stems, 
and  also  remembering  that  it  had  been  found  most  efficient  in 
the  preserving  of  animal  tissues.* 
The  glycerine  answered  its  purposes  admirably,  preserving 
the  delicate  parts  in  all  their  contour,  and  at  the  same  time  pre- 
venting decomposition. 
I  immediately  saw  that  this  property  of  glycerine  might  be 
made  available  for  certain  pharmaceutical  processes  where  it  is 
desired  to  preserve  or  to  extract  the  aromata  of  vegetable  pro- 
ducts, i.  e.  it  is  applicable  to  the  preserving  of  elder,  orange,  or 
rose  flowers  ;  and  also,  as  will  be  shortly  explained,  it  may  be 
substituted  for  the  oils  and  fats  used  in  the  process  termed  en- 
fieurage. 
Flowers  for  making  the  officinal  Aqua  Sambuoi  may  be  pre- 
*  Experiraeats  of  M.  Do  Marquay,  "  Journal  de  Chimh  Medicateo" 
