AmAJp0SiP8Srm-}  Coca  Leaves.  191 
dilute  acetic  acid  in  small,  almost  colorless  prisms,  melts  at  2260, 
and  is  very  readily  soluble  in  alcohol  and  ether,  but  almost  insoluble 
in  benzene. 
Benzoylpseudotropeine  methiodide  y  C15H19N02MeI,  forms  colorless 
crystals,  and  is  moderately  easily  soluble  in  hot,  but  only  sparingly 
in  cold  alcohol.  The  corresponding  methochloride ',  C15H19N02lMeCl, 
crystallizes  in  colorless  needles  or  prisms;  its  platinochlonde , 
(C15H19N02,MeCl)2,PtCl4  +  2H20? 
forms  small,  orange  needles,  and  is  sparingly  soluble  in  cold  water ; 
its  aurochloride,  C15H19N02,MeCl,AuCl3,  is  a  yellow,  crystalline  com- 
pound, sparingly  soluble  in  cold  water. 
Psendotropine  methiodide,  C8H15NO,MeI,  crystallizes  from  hot 
water  in  small,  colorless,  rhombic  crystals,  and  melts  at  2700.  The 
methochloride ,  C8H15NO,MeCl,  forms  compact,  rhombic  crystals,  and  is 
readily  soluble  in  water,  but  only  sparingly  in  alcohol;  its  platino- 
chloride,  (C8H15NO,MeCl)2,PtCI4,  separates  from  hot  water  in  crystals, 
and  melts  at  2160. 
Palmityl  fi-amyrin,  C^H^O^,  occurs  in  Trujillo  coca;  it  melts  at 
750,  dissolves  freely  in  ether,  chloroform,  light  petroleum,  hot  alco- 
hol, and  acetone,  and  has  a  specific  rotatory  power  [a]D  =  54-5°  in 
alcoholic  solution  ;  on  hydrolysis,  it  yields  palmitic  acid  and  /3-amy- 
rin.  The  wax  obtained  from  the  broad-leaved  coca  of  Peru  and 
Bolivia  consists  of  palmityl-/3-amyrin  and  cerotone,  C53H106O,  melt- 
ing at  66°  ;  the  wax  from  Java  coca  seems  to  consist  of  palmityl- 
^3-amyrin,  cerotone,  ceryl  cerotate,  myristyl-^-amyrin,  and  a  sub- 
stance which  the  author  names  hydroxycerotic  acid. 
Hydroxyc erotic  acid,  C27H5i03,  melts  at  82°,  and  dissolves  freely 
in  hot  alcohol  and  light  petroleum,  but  is  only  very  sparingly  solu- 
ble in  cold  ether. 
Cerotolic  acid,  C^H^Og,  is  formed  when  hydroxycerotic  acid  is 
heated  at  ioo°  with  acetic  anhydride  for  eight  days;  it  crystallizes 
in  short  prisms,  and  is  moderately  easily  soluble  in  cold  ether  and 
light  petroleum. 
Sulphur. — Attention  has  been  drawn  by  Prof.  Schulz  (Berl.  klin.  Wochen- 
schrift,  1892,  No.  13)  to  the  value  of  sulphur  in  certain  cases  of  chlorosis  in  which 
iron  proves  inefficient,  and  which  are  not  complicated  with  catarrhal  and  inflam- 
matory conditions  of  the  digestive  tract.  The  sulphur  was  used  in  the  form  of 
flowers  of  sulphur  mixed  with  sugar  of  milk,  as  much  being  taken  three  times 
a  day  as  would  lie  on  the  point  of  a  knife. 
