2I4 
Preparations  of  Soap. 
Am.  Jour.  Pharm. 
May,  1900. 
infections,  to  say  nothing  of  the  disagreeable,  persistent  and  cling- 
ing odors  that  accompany  the  performance  of  much  of  their  work. 
This  preparation  has  been  found  particularly  efficient  as  a  detergent 
and  as  a  deodorant  in  counteracting  the  persistent  and  penetrating 
odor  of  carcinomatous  tissues. 
It  is  advisable  to  dispense  this  preparation  in  glass-stoppered 
vials  with  the  caution  to  have  the  hands  well  wetted  before  apply- 
ing the  soap. 
Cresol  Emulsion  :  This  is  another  preparation  that  is  used  quite 
extensively  with  us  as  a  substitute  for  a  well-known  proprietary 
article,  sold  under  the  trade  name  of  "  Lysol." 
Green  soap   250 
Resin  soap   100 
Alcohol   150 
Cresylic  acid   450 
The  resin  soap  is  made  with  common  resin  instead  of  linseed  oil, 
and  is  added  here  to  give  this  preparation  a  distinctive  character, 
so  as  to  distinguish  it  from  the  antiseptic  soap  described  above. 
Cresol  emulsion  is  used  in  solutions  of  from  I  to  5  per  cent,  as 
an  antiseptic,  and  for  cleaning  and  sterilizing  instruments,  utensils, 
furniture  and  a  hundred  and  one  things  that  will  stand  washing 
with  soap  and  water.  It  is  also  a  cheap  and  at  the  same  time  a 
most  efficient  disinfectant. 
Soap  Liniment:  The  present  formula  for  this  popular  liniment 
does  not  seem  to  meet  with  much  popular  approval,  the  bone  of 
contention  being  of  course  the  soap.  Powdered  soap  is  not  only 
expensive,  but  often  unreliable  and  certainly  does  not  keep  well  in 
the  powdered  state.  Having  an  undesirable  but  well-developed 
affinity  for  water,  it  soon  becomes  soggy  and  lumpy,  and  of  course 
in  this  shape  it  does  not  at  all  come  up  to  the  requirements  that 
are  made  for  powdered  soap  by  the  Pharmacopoeia. 
The  1880  formula,  while  preferable  in  many  respects,  also  had  its 
deficiencies,  chief  among  them  being  the  tendency  that  soap  has  of 
becoming  extremely  hard  when  dry.  This  hardness  not  only  makes 
it  rather  hard  to  cut,  it  also  seems  to  interfere  very  materially  with 
solution,  a  hard  dry  soap  taking  very  much  longer  to  dissolve  than 
does  a  fresh  or  green  soap. 
To  get  over  the  many  petty  annoyances  connected  with  the 
making  of  soap  liniment  and  to  have  at  the  same  time  a  means  of 
