504  Improved  Apparatus  for         { ANo Jember  ^gi™' 
In  the  Rose  irrigator  shown  in  Fig.  3,  a  piece  of  gauze  bandage 
is  inserted  into  each  of  the  four  connecting  tubes  and  the  ends  of 
the  gauze  extend  into  the  large  glass  sight-feed  above.    The  solu- 
Fig.  3.  Rose-irrigator.  A,  drop  counter;  B,  gauze  filter;  C,  perforated 
rubber  stopper.  Pieces  of  gauze  bandage  extend  from  B,  through  the  perfora- 
tions in  C  and  into  each  of  the  instillation  tubes.  The  solution  drops  on  the 
upper  ends  of  the  bandage  in  B  and  is  carried  by  capillarity  into  the  instilla- 
tion tubes. 
tion  falls  on  the  gauze  from  the  dropper  A  and  is  carried  into  the 
four  instillation  tubes  by  capillarity.  There  is  no  way  of  determin- 
ing, however,  whether  or  not  the  four  tubes  are  carrying  the  solu- 
tion as  desired  as  the  tubes  are  made  of  rubber.  In  case  it  is 
desired  that  only  one  or  two  instillation  tubes  from  this  apparatus 
or  the  one  shown  in  Fig.  2  are  to  be  used,  it  is  necessary  to  clamp 
the  remaining  tubes  at  the  wound  thus  causing  more  or  less  inter- 
ference when  dressing  the  wound,  whereas  in  the  improved  apparatus 
the  supply  of  solution  for  each  instillation  tube  is  independent  of 
all  others,  and  the  clamping  is  done  at  the  upper  end  of  the  apparatus. 
