176 
Antiseptic  Cottons  and  Gauzes. 
Am.  Jour.  Pbariru 
April,  1887. 
acid,  in  glycerin,  applying  this  to  the  wound,  first,  and  then  following 
on  top,  with  a  thick  layer  of  dry  salicylated  cotton,  sufficiently  wide  to 
extend  beyond  the  outer  limits  of  the  wound,  on  all  sides. 
Naphthalinated  Cotton  is  made  by  soaking  absorbent  cotton,  in  thin 
layers,  in  a  saturated  solution  of  naphthalin  in  petroleum  benzin  which 
dissolves  about  one  part  of  the  former  to  six  parts  of  the  latter,  ex- 
pressing and  drying.    The  following  is  the  formula : 
Naphthalin  453*5  gm.  (1  ft>.  a  v.) 
Petroleum  benzin  2732  gm.  (6  ft),  av.) 
Absorbent  cotton  453*5  gm.  (1  ft),  av.) 
lodoformized  Cotton.  Lister  accords  little  value  to  the  antiseptic 
qualities  of  iodoform  in  this  shape.  It  may  be  made,  however,  by 
this  formula : 
Iodoform     24  gm.  (370  gr.) 
Ei  her  250  gm.  (8  oz.  av.,  358  gr.) 
Alcohol  750  gm.  (26  oz.  av.,  198  gr.) 
Absorbent  cotton  453*5  gm.  (1  lb.  av.) 
Dissolve  the  iodoform  in  the  ether,  add  the  alcohol  and  proceed  in 
the  usual  wray  or,  if  desired,  the  cotton  may  be  prepared,  extemperan- 
eously,  by  rubbing  the  iodoform  thoroughly  into  it  and  shaking  out 
any  excess.  As  made  above,  it  contains  5  per  cent,  but  can  be  in- 
creased to  a  much  greater  strength  if  wished. 
Carbolized  Cotton.  Cheyne  states  that  this  can  best  be  made  by 
soaking  sufficient  absorbent  cotton  in  a  one  per  cent,  solution  of  car- 
bolic acid  in  ether,  drying  at  once  and  using  immediately.  Any  value 
that  it  may  possess  at  first,  which  is  questioned,  is  almost  nil,  after 
keeping  for  a  time,  from  the  volatility  of  its  active  constituent  and  it 
is  seldom,  if  ever,  employed,  especially  in  view  of  the  great  superiority 
of  the  carbolized  gauze. 
Sublimated  Cotton.  This  cotton  is  readily  made  by  the  following 
modification  of  Rummer's  formula,  and  contains  one-half  of  one 
per  cent,  of  the  poisonous  mercurial  chloride  : 
Corrossive  sublimate  2*5  gm.  (39  gr.) 
Alcohol  57  gm.  ^2  oz.  av.) 
Water  1814gm.  (4  ft),  av.) 
Glycerin  57  gm.  (2  oz.  av.) 
Absorbent  cotton  453*5  gm.  (1  ft),  av.) 
Dissolve  the  sublimate  in  the  alcohol,  add  the  water  and  glycerin, 
impregnate  the  cotton  and  proceed  in  the  usual  way. 
