372    NEW  PKOCESS  FOR  DEPRIVING  SPIRIT  OF  FUSIL  OIL. 
ON  THE  EVAPORATION  OF  WATER  FROM  BENEATH  AN  OILY 
LIQUID. 
By  Be.  A.  Vogeil,  Jr. 
On  evaporating  an  ethereal  tincture  containing  oil,  it  is  ofteia 
observed  that  a  stratum  of  an  aqueous  liquid  is  formed  underneath, 
which,  on  heating  the  liquid  to  expel  the  ether,  likewise  gradually 
disappears.  This  induced  the  author  to  make  some  direct  ex- 
periments. Water  was  weighed  into  a  tared  beaker-glass,  and 
almond  oil  carefully  poured  on  the  top  of  it,  the  weight  was 
again  ascertained,  the  glass  tied  over  with  filtering  paper,  and 
thus  heated  daily  for  about  five  hours,  to  between  90°  and 
100°  C.  (194°  and  212Q  F.j.  The  diameter  of  the  glass  was 
35  millimetres,  the  weight  of  the  water  2,871  grm.,  of  the  oil, 
10.052  grm.     Height  of  oil  '011  metres. 
The  following  gives  the  average  results  of  the  different  weigh- 
ings :  Loss  of  water  after  heating  for  19  hours  to  212°  F.  2-007 
grm.;  evaporation  in  one  hour,  .106  grm.;  evaporation  per  hour 
from  one  centimetre  «011  grm. 
To  ascertain  whether  almond  oil  alone  would  alter  its  weight 
by  long  continued  heating,  a  beaker-glass  covered  with  filtering 
paper  was  placed  in  the  sand  bath,  heated  as  above,  from  Octo- 
ber 9th  to  November  3d,  when  its  weight  had  increased  -08  grm.? 
doubtless  by  oxidation. 
Another  beaker-glass  with  water,  covered  with  oil,  and  tied 
over  with  filtering  paper,  lost  during  the  same  time,  at  ordinary 
temperature,  -041  grm  =  466  per  ct.  Evaporation  of  water 
from  underneath  an  oily  liquid,  it  will  be  observed,  takes  place 
at  ordinary  temperatures.- — Buchners  N.  Mejpertormm,  viL 
485-487.  J.  m.  M. 
NEW  PROCESS  FOR  DEPRIVING  SPIRIT  OF  FUSEL  OIL. 
By  M.  Breton. 
This  new  process  is  merely  an  application  of  a  well-known 
principle,  upon  which  depends  the  operation  by  which  bromine 
contained  in  saline  solutions  is  separated  by  ether.  The  spirit 
containing  fusel  oil  is  mixed  with  a  body  which  is  insoluble,  or 
but  sparingly  soluble,  in  alcohol,  but  which  can  dissolve  fusel  oih 
