278 
Mate,  or  Paraguay  Tea. 
f  A.m.  Jour.  Pharm 
I      June,  1878. 
dered  mate  were  exhausted  by  percolation  with  petroleum  benzin,  and 
the  benzin  allowed  to  evaporate  spontaneously  ;  the  result  was  a  thick 
greenish  black  oily  extract;  the  exhausted  mate  after  drying  was  free 
of  the  benzin  odor,  and  retained  but  little  of  its  own  natural  odor  ; 
the  extract  after  a  long  time  was  not  entirely  free  of  the  odor  of  the 
benzin.  This  extract  was  found  to  contain  chlorophyl,  resin,  wax  and 
fatty  matter,  and  probably  a  small  quantity  of  volatile  oil,  though  none 
could  be  separated  ;  it  contained  no  tannin  or  caffeina. 
After  the  preparation  of  a  fluid  extract  of  mate  by  percolation  with, 
alcohol,  sp.  grav.  '941,  the  residue  was  dried  and  1,000  grams  of  it 
exhausted  by  percolation  with  petroleum  benzin  ;  upon  spontaneous 
evaporation  of  the  percolate  43  grams  of  dark  green  extract  remained  ; 
a  portion  of  this  having  the  consistence  of  castor  oil  was  separated, 
and  a  thicker  portion,  which  adhered  to  the  bottom  of  the  dish,  was 
washed  with  aqua  ammonias  as  long  as  it  removed  anything,  and  then 
washed  with  dilute  hydrochloric  acid.  There  now  remained  370 
grams  of  a  black  mass,  very  adhesive  and  elastic,  and  burning  with  the 
well-known  odor  of  caoutchouc.  This  experiment  proves  that  the 
substances  soluble  in  petroleum  benzin  are  not  removed  from  mate  by 
alcohol  of  the  specific  gravity  '941,  and  a  comparison  of  the  figures  in 
the  petroleum  benzin  line  in  the  tables  also  shows  that  boiling  water 
fails  to  remove  the  same  substances. 
Treatment  with  Chloroform,  Table  No.  I. — 10  grams  of  powdered 
mate  were  percolated  with  chloroform  until  exhausted,  and  the  chloro- 
form evaporated  spontaneously  ;  the  extract  obtained  was  of  a  soft 
waxy  consistence,  fragrant  odor  and  dark  green  color  ;  it  contained 
wax  and  fatty  matter,  chlorophyl,  resin  and  caffeina,  but  no  tannin. 
The  extract  obtained  by  chloroform  from  10  grams  of  mate'  after 
treatment  as  in  Table  No.  II,  was  pulverulent,  of  a  dark  green  color 
and  slight  fragrant  odor  ;  it  contained  resin  and  caffeina,  but  no  tannin. 
The  extract  yielded  to  chloroform  by  10  grams  of  mate  after  treat- 
ment as  in  Table  No.  Ill,  was  pulverulent,  of  a  grayish  olive  color,  and 
almost  odorless  ;  it  contained  resin  and  chlorophyl,  but  no  tannin  or 
caffeina. 
Treatment  with  Alcohol,  sp.  grav.  "822,  Table  No.  I.  — 10  grams  of 
powdered  mate  were  exhausted  by  percolation  with  alcohol,  and  the 
alcohol  driven  off  on  a  water-bath.  The  extract  obtained  was  of  a 
soft  consistence,  heavy  narcotic  odor,  and  deep  green  color  ;  it  con- 
