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CARBONIC  ACID  WATE El  APPARATUS. 
ness?  the  makers  furnishing  the  fountains  or  reservoirs,  to  the 
retailers,  who  pay  an  additional  sum  for  their  use  ;  but  in  small 
towns,  either  the  pharmaceutist  must  prepare  the  Avater  himself, 
or  have  it  sent  from  the  larger  towns,  which  last  is  always  objec- 
tionable as  inducing  the  necessity  of  keeping  a  larger  supply 
than  is  favorable  to  the  proper  condition  of  the  preparation.  In 
our  last  number  the  apparatus  of  Bernhard,  of  this  city,  was 
figured  and  described  (see  page  12).  In  the  present  we  will  ex- 
hibit cuts  explanatory  of  another  form  of  apparatus,  com- 
pact and  simple  in  its  construction,  and  well  adapted  for  use  in 
small  towns  as  well  as  in  cities,  where  the  apothecary  prefers  to 
serve  himself  in  manufacturing  the  water. 
Fig.  1. 
This  apparatus,  known  as  NichoVs  Patent  Qomhinati<m, 
Fountain,  (see  fig.  1,)  is  constructed  of  copper  thickly  coated 
with  tin  on  the  interior  surfaces.    The  peculiarity  consists  in  the 
