Am.  Jour.  Pharm.  \ 
Aug.,  1891.  J 
Anthemis  Cotiila. 
383 
Per  Cent. 
Volatile  oil,  III.  {a),   6-65 
Resin  III.  {b),  IV,  (b)3  V  {b),   21-15 
Organic  Acids  (Tannin,  etc.)  V.  {a),  VI.  {c),   2-55 
Mucilage,  VI.  {a),   1-46 
Dextrin,  VI.  (b),   2-62 
Albuminoids,  coloring  matter,  etc.,  VI.  id),   3*47 
NaOH  extract  not  precipitated  by  Alcohol,  VII.  (b),  .  .....  2'22 
NaOH  extract  precipitated  by  Alcohol,  VII.  (a),   1*42 
Calcium  oxalate,  VIII.  (b),   1*43 
Parabin,  VIII.  {a),   3*40 
Cellulose,  Lignin,  etc.,  IX.,   37'52 
Loss,   1-33 
University  of  Michigan, 
School  of  Pharmacy,  June,  1891. 
ANTHEMIS  COTULA. 
By  William  H.  Haake,  Ph.G. 
Contribution  from  the  Chemical  Laboratory  of  the  Philadelphia  College  of  Pharmacy, 
No.  91. 
Mayweed  is  naturalized  in  the  United  States  from  Europe,  and 
is  found  in  roadsides  and  other  waste  places.  The  flowers  which 
are  employed  as  a  domestic  remedy  were  used  for  this  investigation. 
On  drying  some  of  the  powder  to  constant  weight  at  100°,  the 
loss  which  was  regarded  as  moisture  amounted  to  573  per  cent. 
7-82  per  cent,  of  ash  were  obtained  by  ignition,  of  which  41-22  per 
cent,  dissolved  in  water,  45-80  per  cent,  in  dilute  hydrochloric  acid, 
and  the  remainder,  12-97  per  cent.,  was  regarded  as  silica  and 
silicates. 
Fifty  grams  of  the  finely  powdered  drug  were  exhausted  with 
petroleum  ether,  the  solvent  recovered  by  distillation  and  the  residue 
found  to  amount  to  1-33  per  cent.,  of  which  -66  per  cent,  were  dis- 
solved by  95  per  cent,  alcohol,  indicating  fat,  -50  per  cent,  soluble 
in  absolute  alcohol,  indicating  wax  and  -16  per  cent,  of  caoutchouc. 
There  was  also  a  distinct  quantity  of  volatile  oil,  which,  however, 
was  not  estimated. 
Stronger  ether  extracted  rn  per  cent,  of  resin  together  with 
traces  of  a  bitter  principle  and  a  small  quantity  of  organic  acid, 
which  darkened  with  ferric  chloride.  This  acid  was  obtained  by 
dissolving  the  resin  in  alcohol,  pouring  the  solution  into  water 
acidified  with  hydrochloric  acid  and  the  clear  solution,  after  separa- 
