AmMa0rch,^89a7!m*}  Acetic  Acid  as  a  Menstruum  and  Solvent.  123 
No.  5. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum  of 
60  c.c.  alcohol  and  40  c.c.  water,  yielded  a  residue  weighing  0-410 
gm.  The  liquid  was  not  clear,  filtering  with  great  difficulty,  the 
precipitate  not  settling. 
No.  6. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum  of 
55  c.c.  alcohol  and  45  c.c.  water,  yielded  a  residue  weighing  0-340 
gm.  The  liquid  was  not  clear,  filtering  with  great  difficulty,  the 
precipitate  not  settling. 
No.  7. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum 
of  50  c.c.  alcohol  and  50  c.c.  water,  yielded  a  residue  weighing  o  320 
gm.  The  liquid  was  muddy,  precipitate  not  settling,  and  not  easily 
filtered. 
No  8. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum  of 
45  c.c.  alcohol  and  55  c.c.  water,  yielded  a  residue  weighing  0-246 
gm.  Liquid  cloudy,  precipitate  settling  in  three  days,  filtering 
with  difficulty. 
No.  9. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum 
of  40  c.c.  alcohol  and  60  c.c.  water,  yielded  a  residue  weighing  0  450 
gm.  Liquid  muddy,  not  easily  filtered.  The  addition  of  a  little 
talc  improved  filtering. 
No.  10. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum 
ol  35  c.c.  alcohol  and  65  c.c.  water,  yielded  a  residue  weighing  0  3  38 
gm.    Liquid  not  clear;  not  easily  filtered. 
No.  11. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum 
of  30  c.c.  alcohol  and  70  c.c.  water,  yielded  a  residue  weighing  0-360 
gm.  Liquid  not  clear,  filtered  with  difficulty,  and  filtrate  does  not 
remain  clear. 
No.  12. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum 
of  25  c.c.  alcohol  and  75  c.c.  water  yielded  a  residue  weighing  0-378 
gm.    Liquid  not  clear,  but  filtered  more  easily  than  No.  1 1. 
No.  13. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum 
of  20  c.c.  alcohol  and  80  c.c.  water,  yielded  a  residue  weighing  0  476 
gm.  Liquid  not  quite  clear,  filters  without  much  difficulty,  but 
slowly. 
No.  14. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum  of 
15  c.c.  alcohol  and  85  c.c.  water,  yielded  a  residue  weighing  0-426 
gm.    The  liquid  was  not  quite  clear,  but  filtered  fairly  well. 
No.  15. — 2  gm.  acetract  nux  vomica,  treated  with  a  menstruum 
of  10  c.c.  alcohol  and  90  c.c.  water,  yielded  a  residue  weighing  0-376 
