Am.  Jour.  Pharni. 
July,  1880, 
Varieties. 
375 
The  first  two  are  for  the  unbroken,  and  the  last  for  the  broken  chilblains. 
IV.  Beef's  gall,  5ivj  ol.  terebinth.,  5iv5  spts.  vini  rect.,  90  per  cent.,  ^iss, 
tinct.  opli  5i.    Mix.    Dr.  Val.  Mott. 
V.  Another  formula  for  the  same  affection  is  beef  brine,  Oi  5  potassii  nitratis, 
3ii ;  aquas  ammonias,  5ii.    Mix. —  Toledo  Med.  and  Surg.  Jour.,  February. 
Salicylic  Acid  is  detected  in  dark-colored  fruit  juices  and  wines  by  shaking  well 
50  cc.  wine  with  5  cc.  amylic  alcohol  for  a  few  minutes,  decanting  the  alcohol, 
which  collects  on  the  surface  after  standing,  into  a  test-tube,  mixing  with  an  equal 
bulk  of  spirits  of  wine,  in  which  it  dissolves,  and  adding  a  few  drops  of  iron  chlo- 
ride, when  salicylic  acid,  if  present,  produces  immediately  a  dark  violet  coloration. 
Tannic  acid,  being  scarcely  soluble  in  amylic  alcohol,  will  not  prevent  the  reaction. 
— Fharm.  Centralh.,  Jan.  8,  1880,  p.  16,  from  Ztschr.  f.  Analyt.  Chem. 
A  Durable  Black  Stain  for  Wood,  which  is  not  destroyed  by  light,  moisture  or 
even  by  chloride  of  lime,  is  made  by  Dr.  R.  Godeifroy  by  first  applying  with  a  brush 
or  sponge  to  the  wood  a  solution  of  anilin  muriate  in  water,  to  which  a  little  copper 
chloride  was  added,  and  then  after  drying  a  solution  of  red  potassium  chromate  in 
water.— Z//c/^r.  d.  Allg.  Oest.  Apoth.  Ver.^  Feb.  i,  1880,  p.  55. 
What  is  Butterpowder  ? — Hager  invariably  dispenses  acid  tartrate  of  potassium 
as  butterpowder  ( io*o  for  every  10  liters  cream),  claiming  that  by  its  use  butter  is  made 
better  and  in  greatei  quantity.  The  addition  of  i  to  2  teaspoonfuls  of  cream  of  tartar 
to  sweet  cream  will  always  bring  the  butter  inside  of  an  hour,  even  in  the  coldest 
weather,  when  churning  is  often  exceedingly  slow  and  almost  seems  impossible  unless 
the  cream  is  moderately  sour.  Other  authors  think  that  sodium  bicarbonate  is  a  better 
butterpowder,  which  is  contradicted  by  Hager,  who  feels  convinced  that  its  use 
requires  at  least  2  to  3  times  as  much  time,  and  that  it  yields  at  least  10  per  cent, 
less  butter. — Pharm.  Centralh.,  February  5,  1880,  p.  50. 
For  Removing  Nitrate  of  Silver  Stains,  Dr  H.  Krastzer  recommends  Instead 
of  potassium  cyanide  a  solution  of  10  parts  sal  ammoniac  and  10  parts  corrosive 
sublimate  in  100  parts  water,  with  which  liquid  the  stains  are  said  to  be  removed 
readily  from  the  hands,  linen,  wool  and  cotton  without  injuring  the  fabric. — Archins 
d.  Pharm.,  January,  1880,  p.  52,  from  Roller's  neueste  Erfind.  fT.  Erfahr. 
If  two  parts  Dry  Silver  Oxide  are  triturated  in  a  porcelain  mortar,  or  even 
when  rubbed  on  writing-paper  by  means  of  a  spatula  with  i  part  antimonium  sul- 
phide or  amorphous  phosphorus,  the  mixture  will  ignite  very  readily  according  to 
Prof.  Boettger.  Dry  silver  oxide  will  also  ignite  almost  immediately  when  moistened 
with  a  single  drop  of  phenol  or  creasote,  prepared  from  beech  wood  tar  or  of  com- 
mercial oil  of  cloves,  a  partial  reduction  of  the  silver  oxide  to  metallic  silver  taking 
place. — Archiv  d.  Pharm. January,  1880,  p.  53,  from  Polyt.  Notizbl. 
