'^°'sSt'-S^'°'  }    Essential  Oils  of  Bay,  Pimenta  and  Cloves.  44a 
Oil  of  pimenta  makes  a  clear  solution  in  absolute  alcohol  and  in  95 
or  85  per  cent,  alcohol  in  all  proportions.  It  makes  a  clear  solution 
with  three  volumes  of  60  per  cent,  alcohol,  which  is  not  rendered 
cloudy  on  further  addition  of  the  alcohol.  With  five  volumes  of  50 
per  cent  alcohol  it  makes  a  turbid,  milky  solution  without  separation 
of  oil  globules,  the  opalescence  diminishing  on  increasing  the  alcohol, 
a  clear  solution  being  produced  when  thirty  volumes  of  diluted  alcohol 
have  been  added. 
Oil  of  cloves  is  soluble  in  all  proportions  of  absolute  alcohol  and 
95  per  cent,  alcohol,  Soluble  in  equal  volume  of  85  per  cent,  alcohol, 
which  is  not  rendered  milky  on  further  addition.  Soluble  in  three 
volumes  of  60  per  cent,  alcohol,  the  solution  being  rendered  milky  on 
further  addition  of  alcohol. 
A  mixture  of  80  per  cent,  oil  of  bay  and  20  per  cent,  oil  of  pimenta 
is  soluble  with  slight  milkiness  in  equal  volume  of  alcohol.  A  mix- 
ture of  50  per  cent,  of  each  gave  but  very  slight  milkiness,  practically 
a  clear  solution,  in  equal  volume  of  alcohol,  but  on  adding  more  alcohol 
the  milkiness  becomes  quite  apparent.  Mixtures  of  oil  of  bay  with 
oil  of  cloves  act  similarly. 
Oil  of  bay  yields  a  clear  solution  in  ether,  but  on  diluting  with  85 
per  cent,  alcohol  the  solution  is  rendered  cloudy,  and  on  standing  it 
gradually  becomes  clear,  depositing  a  white  film.  Oil  of  bay  yields  a 
clear  solution  in  benzin,  chloroform  and  amylic  alcohol ;  a  milky 
solution  in  absolute  alcohol,  alcohol,  methylic  alcohol,  turpentine, 
benzol,  carbon  bisulphide,  glacial  acetic  acid,  acetic  ether  and 
acetone. 
Oil  of  pimenta  yields  a  clear  solution  in  ether,  which  remains  clear 
on  the  addition  of  (85  per  cent.)  alcohol.  It  also  yields  a  clear  solution 
in  benzin,  benzol,  chloroform,  amylic  alcohol,  methylic  alcohol,. 
glacial  acetic  acid,  acetic  ether  and  acetone.  Slightly  milky  in  carbon 
bisulphide.  A  clear  solution  in  equal  volume  of  turpentine,  but 
rendered  milky  on  further  addition. 
Oil  of  cloves  yields  a  clear  solution  in  ether,  not  rendered  milky  on 
adding  85  per  cent,  alcohol.  It  yields  a  clear  solution  in  chloroform, 
amylic  alcohol,  methylic  alcohol,  glacial  acetic  acid,  acetic  ether  and 
acetone. .  Slightly  milky  with  benzin ;  slightly  milky  with  benzol,  and 
not  becoming  clear  by  adding  five  times  the  volume  of  benzol ;  a. 
milky  solution  in  carbon  bisulphide  and  turpentine. 
I  have  found  the  following  test  of  value  in  detecting  the  adultera- 
