yo  Analysis  of  P yen  ant  lie  mum  Lanceolatum.{^Y&l'i^Tm' 
stationary;  the  oil  continued  to  boil  for  over  an  hour,  with  the 
temperature  varying  between  2120  and  2160  ;  the  heat  was  then 
removed.    During  the  heating,  the  oil  became  amber-colored. 
When  a  vessel  containing  a  quantity  of  the  oil  was  immersed  in 
water  at  a  temperature  of  from  io°  to  120,  the  oil  became  clouded 
and  nearly  opaque.  A  quantity  of  the  oil  was  placed  in  a  test 
tube,  which  was  then  sunk  into  a  mixture  of  snow  and  salt.  The 
oil  first  became  cloudy,  afterwards,  a  small  quantity  of  a  white  sub- 
stance, separated  in  small,  cottony  masses,  the  liquid  becoming 
again  clear.  The  oil  did  not  increase  in  viscosity  to  any  noticeable 
extent.  On  removing  the  test  tube  from  the  freezing  mixture,  the 
cottony  masses  rapidly  disappeared.  They  were  probably  due  to 
the  presence  of  a  little  water  dissolved  in  the  oil,  especially,  as  the 
portion  of  oil  which  had  been  boiled  in  determining  the  boiling 
points,  when  cooled  with  snow  did  not  lose  its  transparency,  nor  did 
any  substance  separate. 
The  following  color  reactions,  etc.,  were  observed : 
One  drop  of  oil  with  three  drops  of  concentrated  sulphuric  acid 
gave  a  red-brown  color,  immediately.  To  one  drop  of  oil  dissolved 
in  about  1  cc.  of  chloroform,  two  drops  of  sulphuric  acid  were 
added.  The  acid  acquired  a  red  brown  color,  while  the  chloroform 
remained  colorless. 
One  drop  of  oil  with  five  drops  of  strong  hydrochloric  acid  gave 
no  color. 
One  drop  of  oil  with  about  1  cc.  of  alcohol,  and  one  drop  of 
hydrochloric  acid,  gave  no  color. 
One  drop  of  oil  with  four  to  five  drops  of  fuming  nitric  acid  gave 
a  red-brown  color. 
A  fragment  of  iodine  was  added  to  a  few  drops  of  oil,  which 
acquired  a  dark-red  brown  color,  but  there  was  no  energetic  action. 
To  five  drops  of  oil,  -05  grm.  of  picric  acid  was  added.  This  dis- 
solved readily  and  completely  in  the  cold,  forming  a  solution  having 
a  brownish-yellow  color,  which  changed  to  yellowish- green. 
A  portion  of  the  oil  was  treated  in  the  following  manner  : 
15  cc.  of  the  oil  were  mixed  with  12-5  grammes  of  sodium 
hydrate,  40  cc.  of  absolute  alcohol,  and  7  cc.  of  water,  in  a  flask, 
which  was  connected  with  an  inverted  Liebig's  condenser,  and  the 
contents  heated  to  boiling  on  a  water-bath  for  over  two  hours.  To 
the  resulting  deep  red-brown  fluid  was  added  an  equal  volume  of 
