553 
Powdered  Vegetable  Drugs. 
(Am.  Jour.  Pharm. 
I  November,  1898. 
CONCLUSION. 
Benzinum,  or  petroleum  ether,  is  not  adapted  for  use  in  washing 
narcotine,  etc.,  from  opium  in  making  deodorized  tincture,  on 
account  of  its  uncertain  character,  its  low  range  of  solvent  power, 
and  its  disagreeable  odor.  Methyl  acetate  or  acetone  are  much 
better  because  of  greater  uniformity  and  greater  solvent  power,  but 
are  inferior  to  ether  because  of  their  disagreeable  odor. 
QUALITATIVE  EXAMINATION  OF  POWDERED  VEGE- 
TABLE DRUGS. 
By  Henry  Kraemer. 
( Continued  from  No.  10,  p.  521. ) 
GROUP  No.  3.    COLOR,  SOME  SHADE  OF  YELLOW. 
Washed  sulphur,  Sulphur  praecipitatum,  U.S. P.  (Lac  Sulphur  or 
Milk  of  Sulphur),  Mastic,  Glycyrrhiza  (Russian),  Aurantii  amari 
cortex,  Scammony  resin,  Resina,  Lycopodium,  Sandarac,  Sinapis 
alba,  Dextrin  (yellow),  Aurantii  amari  cortex,  Aurantii  dulcis  cor- 
tex, Ammoniac,  Limonis  cortex,  Zingiber  (Jamaica),  Calendula, 
Angustura  bark,  Tr.  Rhei  Dulc,  Rhamnus  purshiana,  Tr.  Rhei 
Arom.,  Rheum,  Hydrastis,  Resina  podophylli,  Aloes  (Cape),  Chry- 
sophanic  acid,  Gamboge,  Turmeric,  Yellow  ochre,  (Argillaceous  or 
Calcareous  earth,  Fe  and  Mn  oxides),  Curry  powder. 
I.    POSSESSING  VEGETABLE  TISSUES  OR  CELL  CONTENTS. 
A.     CELL-CONTENTS  ALMOST  ENTIRELY. 
a.  Starch  grains. 
204.  Dextrin. — Altered  and  unaltered  starch  grains. 
b.  No  starch. 
205.  Lycopodium. — Characteristic  spores  entirely. 
B.     CELL-CONTENTS  AND  VEGETABLE  TISSUES. 
a.    Without  any  or  but  little  starch. 
206.  Aurantii  Amari  Cortex. — Thick-walled  parenchyma  (walls 
10-15  a  thick);  oil  secretion  reservoirs  (120  a  in  diameter);  few 
ducts;  brownish-green  outer  layer;  crystals  of  calcium  oxalate  cubi- 
cal (15  x  15  fj). 
207.  Aurantii  Dulcis  Cortex. — Parenchyma  cells  with  walls  not  so 
thick  as  the  bitter  orange  peel,  being  4  u  thick  ;  secretion  reservoirs 
