The  acetate  of  lead  and  the  creosote  form  a  uniform  mixture,  and
there  is  no  separation  of  the  latter  ingredient.  A  piece  of  lint  soaked
in  the  lotion,  and  applied  to  the  ulcer  twice  or  three  times  arday,
is  my  mode  of  applying  it.  The  whole  is  covered  by  an  oiled ^ilk. —
Med.  Times  and  Gazette,  May  3,  1856,  p.  443.
116. — On  the  TreatmerU  of  Chronic  Simises  hy  strong  Nitric  Add.
By  F.  C.  Skbt,  Esq.,  F.R.S. — Whenever  inflammation,  or  even  red-
ness, has  attended  them,  the  application  has  generally  failed ;  'but  the
large  majority  of  these  canals  are  not  inflammatory,  but  chronic.
The  mode  of  applying  the  escbarotic  is  by  means  of  a  fine  glass  tube
of  length  sufficient  to  reach  the  full  extent  of  the  sinus.  At  one
end  of  the  tube  is  a  small  glass  bulb.  The  air  is  sufiiciently  exhausted
by  the  hand,  when  warm,  to  draw  up  sufficient  acid  to  fill  the  tube,
and  partly  so,  the  bulb.  The  instrument,  thus  armed,  is  passed  into
the  sinus,  and  the  acid  discharged,  either  by  the  hand,  or  by  the  aid
of  a  lucifer  match,  while  the  tube  is  slowly  withdrawn,  pouring  out
its  contents  along  the  entire  track.  I  have  by  such  means  succeeded
in  getting  rid  of  several  old  sinues  that  have  given  me  a  good  deal
of  trouble.  The  glass  instrument  I  have  described  is  not  new  to
this  operation.  I  am  not  the  discoverer,  but  I  can  report  favourably
of  its  MiiXxi^. —Laaaety  Jan.  26,  1856,^.  88.
SYPHILITIC  DISEASES.
116.— ON  THE  PLURALITY  OF  POISONS  IN  SYPHILITIC
DISEASES.
By  P.  C.  Skbt,  Esq.,  F.R.S.,  Surgeon  to  St.  Bartholomew's  Hospital.
