226  Improved  Distillatory  Apparatus.  {Kmd™J£rm' 
altered  somewhat  so  that  its  power  is  increased.  It  has  seven  straight 
tubes  yg-th  inch  in  diameter  and  twelve  inches  long,  surrounded  by  a 
planished  copper  cylindrical  case,  to  which  brass  ends  are  soldered. 
There  is  an  opening  in  each  of  these  ends,  in  which  a  short  piece  of 
copper  tubing  is  soldered  for  admitting  the  supply  of  cold  water  at  the 
lower  tube  by  connection  with  rubber  tubing  with  the  water  supply, 
either  the  hydrant  or  by  syphoning  from  a  bucket  or  other  reservoir  of 
water,  placed  on  a  shelf  or  box  suitably  elevated.  The  exit  tube  at'the 
top  carries  off  the  water  as  it  is  warmed. 
Pharmaceutical  Still. 
By  arranging  a  syphon,  joined  to  a  piece  of  rubber  tube,  as  shown 
in  the  cut,  and  this  compressed  with  one  of  Squibb's  screw  pinch-cocks 
to  adjust  the  flow  of  the  liquid,  it  is  possible  to  use  this  still  for  much 
larger  quantities  of  fluids  than  three  gallons  (the  contents  of  the  body). 
In  fact,  twenty  or  thirty  gallons,  or  an  unlimited  quantity,  might  be 
passed  through  this  small  still,  and  on  account  of  the  power  of  the  con- 
denser, distillation  effected  quite  as  rapidly  as  when  stills  four  or  five 
times  the  size  are  used  ordinarily. 
