562 
WAX  MILK. 
I  have  used  only  Squibb's  chloroform  and  pure  article  of  gly- 
cerin, and  cannot  saj  how  inferior  grades  may  answer. 
Having  used  it  in  a  large  variety  of  cases  with  entire  satis- 
faction, I  can  confidently  recommend  it  to  others. 
Respectfully, 
G.  Wilson  Murdock,  M.D. 
Cold  Spring,  N.  T.,  April  30,  1870. 
— Medical  Record,  N.  Y. 
ON  WAX  MILK. 
ByHermanKoch. 
To  the  Druggists'  Circular: 
After  carefully  perusing  the  article  on  wax  milk,  contained  in 
the  July  issue  of  your  Journal,  I  concluded  to  try  the  experi- 
ment of  making  and  using  the  article  named,  but  found  the  re- 
sult very  unsatisfactory.  I  find  that  this  so-called  wax-milk  in 
the  first  place  does  not  contain  wax  enough  for  most  practical 
purposes,  and  that  furthermore  its  corrosive,  alkaline  nature  will 
interfere  with  many  uses,  such,  for  instance,  as  renovating  finely 
polished  furniture,  picture  frames,  etc.  If  paper  is  to  be  impreg- 
nated by  means  of  this  milk,  several  coats  are  required  which 
dry  slowly,  and  on  account  of  the  friction  in  applying  the  same 
are  very  apt,  especially  in  the  place  of  glazed  or  sized  paper,  to 
destroy  the  smooth  surface.  The  necessity  of  immersing  the 
sheets  in  water  to  remove  the  uncombined  alkali  is  an  additional 
objection  to  this  process. 
After  having  obtained  the  above  results  I  concluded  to  try 
other  "  solvents"  of  beeswax,  which,  wdiile  not  too  expensive, 
would  evaporate  without  leaving  any  smell  or  residue  behind. 
Turpentine  I  found  defective  in  both  these  particulars,  especially 
when  not  quite  fresh. 
Benzine  will  dissolve  a  large  proportion  of  wax,  especially 
when  heated  to  the  boiling  point,  which  can  be  easily  effected 
without  danger  of  explosion,  by  placing  a  bottle  containing  the 
liquid  in  water  heated  to  between  150  and  200  degrees  F.  The 
soliltion,  however,  will  deposit  a  cloudy  sediment  upon  cooling. 
Nevertheless,  it  can  be  readily  used  for  producing  wax  paper,  or 
