THE 
AMERICAN  JOURNAL  OF  PHARMACY, 
SEPTEMBER,  1  8  56. 
APPARATUS  FOR  THE  PREPARATION  OF  ETHER  BY  STEAM. 
By  Edward  R.  Squibb,  M.  D.,  U.  S.  Navy. 
Assistant  Director  U.  S.  Naval'Laboratory. 
Experience  in  making  ether  once  or  twice  a  year,  for  some 
years  past,  has  led  to  the  following  convenient  apparatus  for  its 
production  by  steam  heat.  The  character  of  the  product  ob- 
tained, and  the  simplicity,  cheapness,  and  safety  of  the  apparatus, 
seem  to  warrant  the  publication  of  the  plan  somewhat  in  detail  ; 
for  although  no  new  principles  are  involved,  yet  those  who  prac- 
tice pharmacy  will  hardly  fail  to  acknowledge  the  usefulness  and 
novelty  of  communicating  detailed  practical  results  that  have 
accumulated  from  carefully  conducted  experiments. 
The  apparatus  is  described  in  the  order  in  which  it  is  best 
made  by  the  workmen.  The  scale  of  the  drawings  being  one 
twenty-fourth  of  an  inch  to  the  inch,  the  measurements  are 
omitted  in  description. 
a.  Stand  for  the  still,  made  by  screwing  together  two  thick- 
nesses of  2  inch  pine  plank,  crosswise  to  prevent  warping  by  the 
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