Am.  Jour.  Pharm.  1 
Feb.  1, 1872.  J 
Varieties. 
83 
The  World's  Fair  at  Vienna,  in  1873,  will  embrace  26  classes,  the  third  class 
representing  the  chemical  industry  according  to  the  following  plan  :  a.,  chemi- 
cal products  for  technical  and  pharmaceutical  purposes  (acids,  salts,  chemical 
preparations  of  all  kinds)  ;  b.,  materials  and  products  of  pharmacy,  mineral 
water,  &c.  ;  c,  materials  and  products  of  the  industry  in  fats  (stearic  and  oleic 
acid,  glycerin,  soaps,  candles.  &c.)  ;  d.,  products  of  dry  distillation)  refined 
petroleum,  coal  oil,  paraffin,  carbolic  acid,  benzine,  anilin,  &c.) ;  e..  volatile  oils, 
perfumery  ;  /.,  matches,  &c;  g..  colors  and  dyestuffs  of  mineral,  metallic  or 
organic  origin  ;  h.,  washed,  colored  and  bleached  resins,  sealing  wax,  varnishes, 
albumin,  isinglass,  glue,  starch,  dextrin,  &c;  i.  models  and  diagrams  of  chemical 
apparatus  and  processes  ;  statistics  of  production. — Pharm.  Zeituny,  Nov 
18,  1871. 
Eau  de  Goadron. — The  Eau  de  Goudron,  which  a  chemist  in  Paris,  by  the 
name  of  Guyot,  is  advertising  and  selling  largely,  is  little  else  than  tar  water — 
aqua  picis.  It  is  found  of  great  efficacy  in  the  treatment  of  bronchorrhcea  and 
allied  complaints — Chemist  and  Druggist,  Dec.  1871. 
Carbolic  Acid  Paper. — Carbolic  acid  paper,  which  is  now  much  used  for 
packing  fresh  meats,  for  the  purpose  of  preserving  them  against  spoiling,  is 
made  by  melting  five  parts  of  stearine  at  a  gentle  heat,  and  then  stirring  in 
thoroughly  two  parts  of  carbolic  acid  ;  after  which  five  parts  of  melted  paraffin 
are  to  be  added.  The  whole  is  to  be  well  stirred  together  until  it  cools  ;  after 
which  it  is  melted  and  applied  with  a  brush  to  the  paper,  in  quires,  in  the  same 
way  as  in  preparing  the  waxed  paper  so  much  used  in  Europe  for  wrapping  va- 
rious articles. —  Chemist  and  Druggist,  Dec,  1871. 
Test  for  Absorption  of  Carbolic  Acid. —  By  C.  H.  Hall,  M.  D. — In  treat- 
ing wounds  with  carbolic  acid,  I  have  found  that  when  the  acid  was  ab- 
sorbed in  a  slight  degree,  healthy  action  would  set  up  more  rapidly,  and  the 
healing  process  go  on  more  kindly  ;  but  when  absorption  takes  place  to  such 
an  extent  that  the  acid  produces  its  toxical  effect,  with  the  attendant  symp- 
toms of  depression,  it  not  only  delays  but  complicates  recovery.  My  attention 
was  called,  in  a  late  journal,  to  the  use  of  nitric  acid  as  a  test  for  the  degree  of 
absorption,  and  1  have  found  by  experiment  that  the  amount  of  the  absorption 
can  be  accurately  ascertained,  and  regulated  to  suit  the  emergency  of  any  case. 
I  take  a  given  quantity  of  urine  from  the  patient  under  treatment — about 
two  ounces — and  when  fresh  drawn,  treat  it  with  five  drops  of  nitric  acid  ;  if 
carbolic  acid  is  absorbed  in  a  toxical  quantity,  the  urine  will  tnrn  brown  very 
rapidly  and  assume  a  daik  chocolate  color,  which  will  be  changed  to  a  golden 
yellow  by  the  addition  of  an  excess  of  spirits  of  ammonia.  The  d  gree  of  rapid- 
ity with  which  these  changes  occur,  will  indicate  the  amount  of  absorption,  and 
the  receptivity  of  the  system  to  its  action. — Oregon  Medical  and  Surgical  Re- 
porter, Oct.,  1871. 
