AVa0yUi,  r8H74EM'}    Remarks  on  Resin  of  Podophyllum.  231 
"brown.  No.  5.  Charles  Ellis,  Son  &  Co.,  Philadelphia :  bright 
yellow.    No.  6.  Tilden  &  Co.,  New  Lebanon,  N.  Y.  :  bright  yellow. 
Action  of  Solvents  upon  five  grams  of  Resin. 
Soluble  in  Turpentine, 
"  Ether,  .  . 
"  Chloroform, 
"  Carb.  Bisulph. 
"Petrol.  Benzin 
"  Officinal  solu- 
tion Potassa  re-pre- 
cipitated by  HC1  in 
excess,  
Loss,  
Insoluble 
4-6 
0-02 
017 
0-21 
Insoluble 
3-95 
0-01 
0.77 
0-27 
3 
Insoluble 
2-95 
001 
1-65 
0-39 
Insoluble 
3-55 
0-015 
1-2 
0-235 
Insoluble 
4-2 
0-005 
0-52 
0-275 
Insoluble 
4-3 
0-02 
0-51 
017 
Solubility  of  two  grams  of  Ethereal  Resin. 
1 
2 
3 
4 
5 
6 
Soluble  in  Chloroform,      .  . 
14 
1-25 
1-6 
1-32 
1-15 
1-2 
"       "  Carbon  Bisulphide,  . 
u       "  Petroleum  Benzin, 
"       "  Ether  or  Alcohol,  . 
0-45 
0-55 
0-3 
0-45 
0-70 
0-6 
0-15 
0-20 
0-1 
0-23 
0-15 
0-2 
2 
2 
2 
2 
2 
2 
Some  experiments  were  made  with  a  view  of  isolating  the  white 
alkaloid,  stated  some  time  since  by  Professor  Mayer  to  be  contained 
in  that  portion  of  the  former  officinal  resin  which  is  insoluble  in  ether, 
but  by  the  present  process,  should  its  hydrochlorate  be  soluble  in 
water,  it  should  have  been  present  in  the  mother  liquor,  remaining 
after  the  precipitation  of  the  resin,  but  was  not  there  detected. 
REMARKS  ON  RESIN  OF  PODOPHYLLUM. 
By  J.  M.  Maisch. 
Five  or  six  years  ago,  while  attempting  to  ascertain  the  amount  of 
berberina  in  the  officinal  resin  of  podophyllum  as  prepared  by  myself 
by  the  process  of  the  U.  S.  Pharmacopoeia  for  1860,  I  obtained,  by 
treatment  with  boiling  water,  on  cooling  the  filtrate,  a  light  brownish- 
