482  Analysis  of  Aristoloohia  Reticulata.  {Am'o™*imaTm- 
chloride  and  alcohol.  The  glucose  was  estimated  from  the  cuprous 
oxide  obtained  in  alkaline  solution,  by  igniting  it  and  multiplying 
by  .45. 
From  the  soda  extraction  the  albumen  was  precipitated  by  acetic 
acid  and  alcohol ;  the  portion  remaining  in  solution  was  weighed  as 
extractive  matter,  after  deducting  the  sodium  acetate  present. 
The  decoction  with  dilute  hydrochloric  acid  when  neutralized  with 
ammonia  and  precipitated  by  alcohol,  yielded  pararabin.  The  starch 
was  calculated  from  the  glucose,  and  the  calcium  oxalate  was  de- 
termined by  precipitating  the  decoction  with  sodium  acetate,  igniting 
the  precipitate  and  weighing  as  CaO. 
The  results  of  the  proximate  analysis  are  tabulated  as  follows  : 
PKOXDIATE  ANALYSIS. 
Soluble  in  petroleum  spirit   4*20 
Volatile  oil   TOO 
Resin   320 
Soluble  in  stronger  ether....   1*90 
Resin  ....  190 
Soluble  in  absolute  alcohol   1"80 
Aristolochine,  (approximately)  soluble  in  water   -03 
Tannin,  soluble  in  water   *82 
Phlobaphene   '95 
Soluble  in  distilled  water.   8*00 
Mucilage  ,   '60 
Dextrin   80 
Glucose.....   72 
Malic  acid  and  extractive  matter  ,   5'88 
Soluble  in  caustic  soda  solution  (0'2  per  cent.)   3*10 
Albuminoids   -60 
Extractive  matter   2*50 
Soluble  in  diluted  hydrochloric  acid  (1  per  cent.)   24*40 
Pararabin     1-80 
Starch   6*48 
Oxalate  of  calcium   *53 
Albuminoids  and  extractive  matter   15'59 
Loss  by  chlorine  treatment   5*78  5*78 
Residue  ..   23*09 
Cellulose  and  lignin   23*09 
Ash.   11*40  11-40 
Moisture     10-70  10-70 
Loss   5  63  5-63 
100-00  100-00 
Volatile  oil. — Ten  pounds  of  the  drug  were  distilled  with  water, 
and  about  one  and  a  half  fluid-ounces  of  volatile  oil  obtained.    It  was 
