IMPROVEMENTS  IN  PREPARING  RESINS. 
333 
In  gonorrhoea,  and  leucorrhoea,  injections  of  the  perchloride 
have  been  tried  with  success  in  weak  and  lymphatic  subjects,  the 
proportion  of  the  perchloride  being  twenty  drops  to  three  ounces 
and  a  half  of  water. 
As  a  Hemostatic. — 1.  As  a  local  or  external  haemostatic,  3  to 
5  parts  chloride  of  iron  to  100  parts  of  distilled  water.  Lint 
soaked  in  this  mixture  is  to  be  applied  with  more  or  less  pressure 
on  the  seat  of  hemorrhage.  2.  As  an  internal  haemostatic,  1 
part  of  chloride  of  iron  to  500  of  distilled  water,  sweetened  to 
taste.  One  tablespoonful  to  be  given  every  hour,  or  oftener,  if 
necessary.  This  formula  suffices  to  check  the  fiercest  hemor- 
rhage within  twenty-four  hours.  The  same  formula,  without 
sugar,  forms  a  useful  uterine  injection  or  astringent  lavement  in 
cholera  or  colliquative  diarrhoea.  3.  A  haemostatic  ointment  is 
composed  of  4  to  15  parts  of  chloride  of  iron  to  30  of  axunge. 
In  a  letter  in  the  Medical  Gazette,  August  27th,  Mr.  J. 
Zachariah  Laurence  states  that  having,  a  few  months  ago,  drawn 
the  attention  of  the  profession  to  the  powerful  local  styptic 
properties  of  the  solid  perchloride  of  iron,  he  has  since  that  time 
found  a  superior  method  of  employing  it.  "  If  the  solid  per- 
chloride of  iron  be  kept  in  a  bottle,  a  small  portion  of  it  after  a 
time  deliquesces  into  a  thick  brown  fluid,  which  is  constantly 
kept  in  a  state  of  super-saturation  by  the  undeliquesced  portions 
of  the  salt.  This  liquid,  applied  by  means  of  a  spun-glass  brush 
to  a  bleeding  surface,  arrests  the  bleeding  almost  instantaneous- 
ly. This  mode  of  application  is  particularly  valuable  in  apply- 
ing the  styptic  to  such  cases  as  excision  of  the  tonsils,  bleeding 
from  the  deeper-seated  gums,  &c." — Pharmaceutical  Journal, 
Oct.,  1859. 
IMPROVEMENTS  IN  PREPARING  RESINS, 
Br  Hunt  and  Pochin. 
This  patent  is  partly  for  distilling  turpentine  in  vacuo,  and 
partly  for  an  improved  method  of  preparing  "virgin  resin." 
As  the  process  is  a  valuable  and  important  one,  we  shall  give  a 
condensed  account  of  it.  The  principle  consists,  mainly,  in  fil- 
tering the  crude  turpentine  (previous  to  distillation  with  steam 
in  vacuo)  at  as  low  a  temperature  as  is  consistent  with  sufficient 
fluidity. 
