Am.  Jour.  Pharm. ) 
Sept.,  1891.  J 
Fabiana  Imbricata. 
435 
in  80  per  cent,  alcohol.  It  may  be  a  decomposition  product  formed 
by  the  action  of  the  acid  upon  the  glucoside.  It  will  be  seen  that 
no  alkaloid  was  found,  and  it  is  probable  that  the  glucoside  mixed 
with  impurities  has  been  mistaken  for  an  alkaloid. 
III.  Treatment  with  95  per  cent,  alcohol. — Total  amount  dissolved 
n-12  per  cent.,  nearly  all  of  which  was  soluble  in  water.  The  water 
solution  was  treated  with  chloroform ;  upon  separating  the  chloro- 
form layer  and  allowing  it  to  evaporate  spontaneously,  an  additional 
quantity  of  the  fluorescent  principle  was  obtained,  but  no  results  by 
treating  the  acid  and  alkaline  solutions  in  like  manner. 
The  water  solution  gave  the  following  reactions : 
Solution  of  ferric  chloride,  inky  green  precipitate. 
Solution  of  lead  acetate,  golden  yellow  precipitate. 
Solution  of  copper  acetate,  dirty  yellow  precipitate. 
Solution  of  gelatin,  white  precipitate  (slight). 
Solution  of  molybdate  of  ammonium,  a  red  color. 
Solution  of  ferrocyanide  of  potassium,  with  ammonium  hydrate, 
a  deep  red  color. 
Solution  of  cinchonine  sulphate,  a  white  precipitate. 
The  water  solution  was  precipitated  with  lead  acetate  and  the 
amount  of  the  peculiar  tannin  found  to  be  -78  per  cent.  The  amount 
of  the  alcoholic  residue  not  soluble  in  water  was  soluble  in  dilute 
ammonia,  and  consisted  of  phlobaphene. 
IV.  Treatment  with  water. — Total  amount  dissolved,  8-8  percent. 
A  small  amount  of  mucilage  was  found  and  18  per  cent,  of  dextrin, 
organic  acids  and  allied  substances  7  per  cent.;  probably  a  large 
amount  of  this  is  tannin  and  gallic  acid. 
V.  Treatment  with  2  per  cent,  solution  of  potassium  hydrate. — 
Total  amount  dissolved,  10-5  percent.,  mucilage  1-55  per  cent  , albu- 
men 3-88  per  cent.,  undetermined  substances  5-07  per  cent. 
VI.  Dilute  acid  dissolves  a  very  small  amount.  Cellulose  and 
lignin  45-4  per  cent.,  ash  4  per  cent.,  moisture  8  per  cent. 
SUMMARY. 
•  Per  Cent.         Per  Cent. 
Ash,   4*oo 
Moisture,   8-oo 
Petroleum  ether  Extract, 
(a)  Volatile  Oil,   2  22 
(b)  Wax'and  Fat,   3-24 
(c)  Fluorescent  Principle  and  caoutchouc-like  body, 
small  amount,   5-65 
