248  Practical  Notes  from  Foreign  Journals.     {"^"'^y'  igsT  "' 
solved  in  warm  glycerin,  6*0,  the  solntion  to  be  incorporated  with  a 
mixture  of  paraffin  and  soft  paraffin,  12'0;  but  this,  does  not  yield  a 
uniform  ointment. 
Krapfenbauer  recommends  the  following  modified  formula :  Melt 
^paraffin,  9*0;  add  oil  of  almond,  13*0;  when  cold  mix  by  trituration 
with  finely  powdered  boric  acid,  6*0,  and  soft  paraffin,  8*0.  The  con- 
sistence is  unobjectionable,  and  the  ingredients  do  not  separate  on 
keeping  the  salve  for  years. — Ibid.,  p.  184,  215. 
Antiseptic  2)oivder  loith  carbolic  acid  is  prepared  by  P.  Bruno  by 
melting  together  rosin,  (30*0,  with  stearin,  15*0,  and  adding  to  the 
cooling  but  still  liquid  mixture  carbolic  acid,  25*0,  which  is  to  be 
carefully  triturated  with  800  grams  of  precipitated  calcium  carbonate, 
until  a  uniform  powder  is  obtained. — Phar.  Post,  1881,  p.  133. 
Scdicylated  starch,  recommended  by  Dr.  Kersch  in  eczema,  is  pre- 
pared by  adding  pure  starch  in  small  portions  to  a  rather  large  quan- 
tity of  a  2  or  3  per  cent,  solution  of  salicylic  acid  in  alcohol,  agitating 
well  after  each  addition.  The  excess  of  liquid  is  decanted,  the  starchy 
mass  enclosed  in  muslin,  well  pressed,  rubbed  into  powder  and  dried 
at  about  80°C.  A  similar  intimate  mixture  of  salicylic  acid  with 
starch  cannot  be  prepared  by  even  long-continued  trituration  of  the 
two  substances. — Ibid. 
Lister  s  antisej^tic  gauze  is  prepared,  according  to  C.  Mercieres,  by 
-  melting  together  resin  5  parts,  paraffin  7  parts  and  crystallized  car- 
bolic acid  1  part,  and  dipping  into  the  mixture  for  about  5  minutes 
pieces  of  unsized  gauze  or  muslin.  The  excess  of  the  mixture  is 
removed  by  slight  pressure,  the  fabric  is  spread  out  in  layers,  covered 
on  both  sides  with  pieces  of  gauze  to  prevent  the  dropping  off  of  the 
carbolic  mixture,  and,  after  having  been  placed  between  two  slabs  of 
marble  for  about  12  hours,  completely  dried  by  exposure  to  the  air. — 
Archil-  d.  Phar.,  Feb.,  1881,  p.  148,  from  i^^p.  de  Phar. 
Preparation  of  Chlorine. — J.  Townsend  has  succeeded  in  utilizing 
the  almost  worthless  magnesium  chloride  obtained  in  working  the 
Stassfurt  salts.  A  solution  of  the  refuse  salt,  of  40  to  50°B.,  is  mixed 
with  about  10  per  cent,  of  manganic  oxide,  and  by  means  of  hot  air 
heated  to  113°C.  The  evolution  of  chlorine  may  be  made  continual 
by  the  addition  of  hydrochloric  acid  from  time  to  time. —  Chem.  Ztg., 
1881,  p.  198.  • 
Stability  of  Calomel. — Mixtures  of  calomel  with  sugar,  milk  sugar, 
gum  arabic,  liquorice  root,  marsh  mallow  root  and  aloes  were  made  by 
