622 
Powdered  Vegetable  Drugs. 
J  Am.  Jour.  Pharm 
C   December,  1898. 
577-  Sugar. — L'ke  rock  candy;  dissolves  in  glycerin  without 
residue. 
578.  Terebinthina. — More  adhesive  (softer  in  summer)  than  Pix 
Burgundica ;  nearly  transparent  colorless  or  light  yellowish  masses 
of  irregular  rounded  outline.  Solution  in  glacial  acetic  acid  of  a 
light  yellow. 
C.     NO  OIL,  AND  MOUNTS  IN  GLYCERIN  MORE  OR  LESS  OPAQUE. 
579-  Confectio  Rosa. — Fragments  of  red  rose  petals  with  charac- 
teristic more  or  less  rounded  papillae ;  few  elliptical  pollen  grains 
(18  x  32  fi) ;  mass  grayish  and  made  up  of  rounded  grains;  some 
transparent  sugar  crystals. 
580.  Lactucarium. — Grayish  brown  and  dark  brown,  irregular  and 
rather  angular  masses  ;  with  alkalies  they  become  reddish  brown  and 
then  a  dirty  brown  ;  with  H2S04,  but  slightly  (faint  yellow)  affected. 
NO.  7.    VEGETABLE  (ALSO  AN  I M  AL)  DRUGS  WHICH  DO  NOT 
OCCUR  IN  POWDERS  BUT  IN  MASSES  OR  LIQUIDS- 
I.  LIQUIDS. 
581.  Balsam  Peru — Color  blackish. 
582.  Copaiba. — Color  amber. 
583.  Gurjun  Balsam.— Color  amber. 
584.  Mel. — Colorless  or  faint  yellow. 
585.  Styrax. — Peculiar  gray  color. 
II.     SEMI-FLUID  OR  NEARLY  SOLID. 
586.  Bals.  Tolu. — Characteristic  odor. 
587.  Prunum. — Characteristic  tissues  of  pericarp  and  seed. 
588.  Resina  Podophylli. 
589.  Tamarindus. — Characteristic  tissues  of  pericarp  and  seed. 
III.  SOLID. 
590.  Elastica. — Not  pulverulent. 
591.  Resina  Podophylli. 
REMARKS. 
This  investigation,  which  has  occupied  the  attention  of  the  author 
for  several  years,  is  based  on  the  careful  study  of  the  crude  (some- 
times also  fresh)  drug  as  well  as  authentic  commercial  powders 
