TO 
PRESENCE  OP  GLUCOSE  IN  OPIUM,  ETC. 
those  known  to  be  rich  in  morphia,  and  determined  to  study  them 
more  closely. 
It  naturally  occurred  to  Mr.  Lahens  to  inquire  whether  poppy 
heads  do  not  contain  glucose  among  their  constituents?  and  he 
found  it  very  soon  in  the  alcoholic  extract  of  the  poppy,  as  well 
as  in  the  dry  and  recent  poppy  heads,  notwithstanding  that  no 
allusion  had  been  made  to  its  presence  before  in  these,  or  in 
opium,  where  it  has  probably  been  confounded  with  extractive 
matter. 
His  experiments  do  not  disprove  Landerer's  statement,  but 
show  that  at  least  a  part  of  the  sugar  is  properly  present,  and 
is  therefore  a  sufficient  problem  to  decide  how  much  of  the  glu- 
cose is  derived  from  the  poppy.  He  therefore  tested  quantita- 
tively the  fourteen  specimens  of  opium  before  noticed,  besides 
four  samples  of  indigenous  opium,  with  the  following  results^ 
viz  : — 
No.  1.  Egyptian 
opium  contained 
6.9 
of  Glucose 
"  2.  Smyrna 
do, 
do. 
8.0 
do. 
"  3.  " 
do. 
do. 
7.2 
do. 
u  4=  a 
do. 
do. 
7.1 
do. 
"  5.  " 
do. 
do. 
7.6 
do. 
"  6.J,  Constantinople  opium 
do. 
14.5 
do. 
"  7.  « 
do. 
do. 
4.3 
do. 
"  8.  " 
do. 
do. 
7.6 
do. 
"  9.  " 
do. 
do. 
10.0 
do. 
"10.  " 
do, 
do. 
7.5 
do. 
"11.  " 
do. 
do. 
8.4 
do. 
"12.  " 
do. 
do. 
6.4 
do. 
"13.  " 
do. 
do. 
8.0 
do. 
"14.  Opium  of  unceitain  origin 
do. 
3.0 
do. 
u  15.  Indigenous  French  opium 
do. 
6.5 
do. 
"16.  " 
do. 
do. 
7.5 
do. 
"17.  " 
do. 
do. 
7.0 
do. 
"18.  " 
do. 
do. 
8.0 
do. 
The  author  remarks  that  specimens  6,  7,  and  14  had  been 
previously  found  deficient  in  morphia,  and  that  7  and  14  bore 
evident  marks  of  having  been  remade. 
Setting  aside  the  results  for  these  three  specimens  for  the 
present,  it  follows  : 
