A?un^9Sarm'}      Some  Constituents  of  Jambul.  265 
softened  somewhat  lower.  It  was  necessary  to  separate  a  small 
quantity  of  low-melting  material  (70-750)  by  a  fractional  crystal- 
lization and  phytosterol  then  separated  in  glistening  plates,  melting 
sharply  at  IZS-^S-S0 - 
Calc.  for  C27H4GOH20:  H20,  4.5.    Found:  5.6  per  cent. 
Calc.  for  C27H460:  C,  83.9;  H,  11.9.    Found:  C,  83.8;  H,  11.6. 
0.1 163  g.  of  the  anhydrous  phytosterol  made  up  to  20  Cc.  with 
chloroform  showed  a  rotation  of  — 0.489  in  a  2  dcm.  tube,  whence 
Wg=—  42.04°. 
It  yielded  an  acetyl  derivative  that  separated  from  acetic  an- 
hydride in  thin  plates  which  melted  at  119-1200. 
Examination  of  the  Fatty  Acids. — The  alkaline  solution 
from  which  the  unsaponifiable  matter  had  been  extracted  with  ether 
was  acidified  and  the  liberated  fatty  acids  were  extracted  with  ether. 
The  ether  solution  was  dried  over  anhydrous  sodium  sulfate,  con- 
centrated to  a  small  volume  and  then  largely  diluted  with  ligroin 
which  precipitated  some  tarry  material.  This  was  removed  by  fil- 
tration, and  the  solvent  was  distilled  from  the  fatty  acids.  These 
boiled  chiefly  at  230-2600  at  15-20  Mm.  A  small  fraction  distilled 
at  260-280 0  at  20  Mm.  The  weight  of  distilled  acids  was  30.1  g., 
and  the  iodine  number  was  98.3. 
These  acids  were  mixed  with  those  which  had  been  extracted 
with  potassium  carbonate  solution.  A  portion  weighing  22.5  g.  was 
converted  into  the  lead  salts,  which  were  treated  with  ether.  The 
liquid  acids  obtained  from  the  lead  salts  soluble  in  ether  weighed 
I2-9  (57-3  Per  cent.).  These  boiled  chiefly  at  235-2450  at  32-34 
Mm. 
Calc.  for  C18H3402:  C,  76.6;  H,  12. 1 ;  iodine  no.,  90.1 ;  for  C1SH3202 :  C,  77.1 ; 
H,  11.4;  iodine  no.,  181.4.  Found:  C,  76.6,  76.7;  H,  1.1.3,  H-55;  iodine  no., 
1317. 
The  liquid  acids  therefore  consist  of  a  mixture  of  oleic  and  lin- 
oleic  acids. 
The  lead  salts  of  the  fatty  acids,  insoluble  in  ether,  were  decom- 
posed with  hydrochloric  acid  and  the  solid  fatty  acids  separated  in 
the  usual  manner.  When  dissolved  in  absolute  alcohol  with  the  ob- 
ject of  separating  any  of  the  more  insoluble  acids  by  crystallization, 
it  was  found  that  the  acids  were  very  readily  soluble  and  no  satis- 
