Am.  Jour.  Pharm. 
Oct.,  1890. 
Arts  to  I. 
495 
lard  into  a  mortar  with  the  mercury  and  working  it  until  the  extinc- 
tion of  the  metal,  adding,  at  the  same  time,  drop  by  drop,  a  small 
quantity  of  water  charged  with  oxygen.  Ten  drops  of  this  water 
are  added  for  each  ioo  gm.  of  mercury,  this  amount  being  quite 
sufficient  to  insure  rapid  work.  The  operation  is  terminated  by 
adding  the  remainder  of  the  lard. — Bull,  de  la  S.  de  Phar.  de  Bor- 
deaux, July,  1 890. 
A  New  Excipient. — According  to  the  Jour,  de  Conn,  med.,  Aug. 
7,  M.  Adam,  a  Parisian  pharmacist,  has  produced  a  resin  soap 
"  which  may  be  recommended  as  constituting  a  new  pharmaceutical 
excipient."  The  formula  is  as  follows:  Resin,  100  parts;  carbonate 
of  potash,  30  parts;  water,  300  parts.  The  components  are  heated 
to  the  boiling  point,  when  an  effervescence  takes  place,  the  product 
being  finished  when  the  disengagement  of  gas  ceases.  The  heat 
may  be  continued,  however,  until  any  desired  consistency  is 
obtained.  The  product  may  be  made  hard,  if  necessary.  This 
soap  is  soluble  in  water,  and  does  not  give  a  precipitate  with 
marine  salt.  It  may  be  used  as  an  excipient  for  a  great  many  drugs, 
and  it  has  the  advantage  of  being  less  costly  than  either  vaseline  or 
cerate.  It  should  not  be  used  with  metallic  salts,  owing  to  the 
liability  to  double  decomposition.  Resin  soap  works  well  with 
mercury  and  mixes  freely  with  camphor,  naphthol,  sulphide  of  car- 
bon, tar,  etc.  It  does  not  make  a  homogeneous  product  with  the 
oil  of  cade.  It  appears  to  have  been  serviceable  thus  far  in  the 
preparation  of  some  of  the  remedies  used  by  veterinary  surgeons. 
ARISTOL. 
By  Leopold  Larmuth. 
Although  aristol  has  been  in  the  hands  of  the  profession  such  a 
comparatively  short  time,  an  extensive  series  of  publications  of 
experience  of  its  use  has  appeared,  which,  for  the  most  part,  quite 
confirms  the  very  favorable  results  recorded  by  Eichhoff 1  of  its  use. 
Dr.  Brocq2  reports  a  remarkable  case  which  he  presented  to  the 
Sociefe  Medicale  des  Hopitaux — a  patient  suffering  from  extensive 
superficial  epithelioma  of  the  face,  extending  from  the  level  of  the 
1  "Ueberdie  dermat.-tb.erap.  Wirksamkeit  einer  neuen  Jodverbindung,  das 
Aristol." — Monatsh.  f.  prakt.  Dermat.,  X.,  No.  2. 
2  Bulletins  et  mem.  de  la  Societi  Medicale  des  Hdpitaux  de  Paris,  1890, 
No.  13. 
