302         Quinamina,  A  New  Cinchona  Alkaloid.  {AMjSjEi,  w^J** 
dide  and  mineral  acids  are  without  action  upon  it,  and  albumen  is  not 
precipitated.  It  has  been  successfully  used  in  Berlin  in  cases  of  syphilis 
in  the  form  of  pills  (0*5  to  1*0  in  100  pills)  and  subcutaneously  (0*5 
to  10  grm.  in  100  water).— Ibiot.,  K  22. 
Cod  liver  oil  is  flavored,  by  Duquesnel,  with  1  per  cent,  of  oil  of 
eucalyptus,  which  covers  the  odor  and  taste  so  completely  that  only 
that  of  the  latter  is  perceived,  and  even  the  unpleasant  eructations- 
are  entirely  modified. — Journ.  de  Pharm.  et  de  Chim.,  May,  1872. 
ON  QUINAMTNA,  A  NEW  CINCHONA  ALKALOID. 
By  O.  Hesse. 
Cinchona  succirubra,  cultivated  in  British  India,  is  now  so  far  de- 
veloped that  considerable  quantities  can  be  exported,  and  its  value, 
which,  according  to  Howard,  is  not  inconsiderable,  may  be  established. 
I  have  found  this  bark  to  contain  relatively  much  quinidia  (cinchoni- 
dia  ?)  some  quinia,  and  in  variable  proportions  other  alkaloids,  among 
them  a  new  one,  which  I  propose  to  call  quinamina  (chinamin.) 
Quinamina  crystallizes  in  very  fine  long,  asbestos-like,  white  prisms^ 
which  contain  no  water  of  crystallization.  It  dissolves  at  ordinary 
temperature  rather  easily  in  ether,  more  readily  on  boiling,  and  crys- 
tallizes on  cooling  and  evaporation.  Alcohol  and  petroleum  ether 
dissolve  it  readily,  particularly  when  heated,  and  separate  it  likewise 
in  the  crystalline  form.  It  is  little  soluble  in  diluted  alcohol  and  in- 
soluble in  water,  caustic  potassa  and  ammonia;  alkalies  separate  it 
from  the  solutions  of  its  salts  as  a  milky  turbidity  and  finally  in  fine 
needles. 
Its  alcoholic  solution  has  an  alkaline  reaction  ;  it  neutralizes  sul- 
phuric and  muriatic  acid,  forming  salts  which  are  very  freely  soluble 
in  water.  The  muriate  is  amorphous  ;  the  sulphate  crystallizes  with 
difficulty  in  hexagonal  scales  and  short  prisms. 
The  platinum  salt  is  a  yellow  amorphous  precipitate,  readily  solu- 
ble in  water,  and  therefore  obtainable  only  from  the  concentrated  so- 
lution of  the  muriate.  Its  behavior  to  chloride  of  gold  is  likewise 
very  characteristic  ;  the  solution  of  the  muriate  produces  with  it  a 
yellowish  white  precipitate,  soon  acquiring  a  purple  color  and  sepa- 
rating gold,  while  the  supernatant  liquid  assumes  a  purplish  red,  af- 
terwards a  brownish  color.  Ferric  chloride  shows  no  characteristic 
reaction. 
Dilute  acid  solutions  of  quinamina  have  not  the  slightest  fluores- 
cence.   With  regard  to  its  solubility  in  ether,  it  might  be  placed  be- 
