518  Powdered  Vegetable  Drugs.  {A^oTrPi898.m- 
H.  CONTAINING  TANNIN  MASSES. 
166.  Chimaphila. — See  No.  12,  crystals. 
167.  Galla. — See  No.  4,  crystals  and  starch. 
168.  Gaultheria. — See  No.  17,  crystals. 
169.  Hamamelis. — See  No.  33,  crystals  and  hairs. 
170.  Uva  Ursi. — See  No.  37,  crystals. 
GROUP  NO.  2.    COLOR  WHITISH. 
Wheat  flour,  Corn  starch,  Wheat  starch,  Potato  starch,  Rice 
starch,  Bermuda  arrow  root  starch,  Montserrat  arrow  root  starch, 
Wheat  middlings,  Corn  meal,  Corn  bran,  Orris  root,  Resina  jalapae, 
Dextrin  (white),  Gum  arabic  (white),  Tragacanth,  Saccharum  (cane), 
Sacch.  Lactis,  Scilla,  Camphora,  Talc,  Prepared  chalk,  Ppt.  chalk, 
Pulv.  Cretse  Comp.,  BaC03,  BaS04,  CaS04,  Heavy  magnesia  (MgO)f 
Light  magnesia  (MgO),  Antimony  oxide,  Antimonial  powder,  Tar- 
tar emetic,  Calcium  phosphate  ppt.  [Ca3  (P04)2],  Terra  alba,  Potas- 
sium bitartrate. 
I.    PLANT  TISSUES  OR  CELL  CONTENTS  RECOGNIZABLE. 
A.     CONTAINING  STARCH. 
y  a.  Unaltered  starch  alone. — Grains  characteristic  for  each  ;  com- 
pletely soluble  in  glycerin  on  heating,  and  precipitated  on  the  addi- 
tion of  water. 
171.  Arrow  root  starch  (Bermuda). 
172.  Arrow  root  starch  ( Montserrat ). 
173.  Corn  starch. 
1 74.  Rice  starch. 
175.  Wheat  starch.— -Does  not  agglutinate  on  mixing  with  water 
distinction  from  wheat  flour. 
b.  Altered  and  unaltered  starch  grains. 
176.  Dextrin. — Sticky  mass  with  water  ;  unaltered  starch  grains 
detected. 
c.  Plant  tissues  in  addition  to  starch  grains. — The  former  remain 
upon  treatment  with  hot  glycerin. 
a.  Do  not  readily  dissolve  or  swell  in  cold  water  and  become 
transparent  and  sticky. 
177.  Corn  meal. — More  starch  and  oil  and  little  hull. 
178.  Corn  Bran. — Less  starch  and  oil  and  more  hull. 
