JC 
Abies  Balsamea,  Miller. 
( Am.  Jour.  Pharm. 
1     January,  1895. 
rotatory  power  were  determined  at  20°  C,  the  latter  in  a  100- 
millimetre  tube. 
Urban.  H. 
a  —  28-9166°  —  29*0375° 
d  o-888r  0-8892 
(a)d  -  32-55°  -  32-66° 
It  will  be  seen  from  these  data  that  practically  no  change  had 
taken  place  within  six  months. 
Upon  analysis  the  oil  yielded  the  following  results  : 
I.  0*2105  g.  yielded  0*6496  gram  C02  —  01778   g.  C,  and 
0-2209    "    H20  =  0-02454  g-  fi- 
ll. 0-2297  g.  yielded  0-7066    "    C02  —  0-1927   g.  C,  and 
0*2426    "    H20      0-02695  g.  H. 
Found. 
I.  n. 
C  84-16  per  cent.  83-895  per  cent. 
H  n-66       "  n'735 
It  will  be  seen  from  the  results  that  the  oil  contains  a  large 
amount  of  an  oxygenated  compound.  Upon  distillation,  the  follow- 
ing fractions  were  obtained  : 
Fraction. 
Yield. 
—  160°  c. 
1  -5  per  cent. 
1610  to  165°  C. 
I5-4 
165°  "  167°  C. 
177 
167°  "  170°  C. 
146 
170°  "  175°  c. 
21-5  " 
175°  "  185°  C. 
77 
185°  "  195°  c. 
5-4  " 
195°  "  205°  C. 
4-6  « 
205°  "  2IO°  C. 
62 
above  210°  C. 
5'4 
The  unstability  of  the  boiling  point,  as  well  as  the  acid  reaction 
of  the  first  fractions,  seemed  to  indicate  that  the  distillation  was 
accompanied  by  a  decomposition  of  an  ester.  Previous  to  saponi- 
fication, the  fractions  were  placed  in  a  freezing  mixture  over  night 
without  any  separation.  The  fractions  were  then  mixed  and  57 
cubic  centimetres  of  the  oil  boiled  with  potassium  hydrate, 
dissolved  in  alcohol,  for  four  hours.  The  amount  of  potassium 
hydrate  consumed  was  then  determined  by  decinormal  sulphuric 
acid.  It  was  thus  ascertained  that  2- 5 562  grams  of  potassium 
hydrate  had  been  consumed  in  the  saponification,  corresponding  to 
8  9467  grams,  or  17  65  per  cent,  bornyl  or  terpinyl  acetate. 
