332  Fifth  Revision  German  Pharmacopana.  { "^"jf,?" '■'ign*'""' 
lemplastrum  zinci,  for  the  two  popular  plasters,  surgeons  adhesive 
plain  and  with  zinc  oxide.  Their  formulas  contain  caoutchouc,  wool 
fat  and  copaiba  balsam,  with  powdered  orris  root  as  a  filler,  and  are 
well  worth  experimenting  with  as  a  substitute  for  our  official 
adhesive  plaster  that  is  never  made. 
Peanut  oil  is  introduced  and  is  directed  as  an  ingredient  in  some 
of  the  plasters,  ointments  and  liniments,  but  it  is  to  be  noted  that 
for  camphorated  oil  the  German  Pharmacopoeia  still  adheres  to  olive 
oil 
Among  the  articles  dismissed  we  note  hydrobromic  acid,  dried 
egg  albumin,  tar  water,  ferric  chloride,  jaborandi,  poppy  capsules, 
vanilla,  solution  ammonium  acetate,  syrup  of  poppy,  wines  of  col- 
chicum  and  ipecac. 
The  galenical  preparations  are  classified  into  numerous  distinctive 
classes  and  each  class  is  headed  by  a  short  descriptive  paragraph  or 
chapter  setting  forth  its  definition  and  such  general  instructions  as 
are  appropriate. 
The  German  still  lovingly  adheres  to  his  idol,  maceration,  and 
percolation,  as  yet,  receives  but  scant  consideration  in  his  pharmaco- 
poeia. While  percolation  is  directed  in  a  few  formulas  such  as  the 
fluid  extracts,  where  the  rate  of  flow  is  fixed  at  30  drops  per  minute, 
yet  in  other  important  extractions  such,  as  for  example.  Extract  of 
Nux  Vomica,  maceration  and  expression  is  directed. 
The  requirements  or  some  of  the  important  articles  are  briefly 
given  so  as  to  be  compared  with  those  official  in  the  U.S. P. 
Alcohol  is  91.29  tO'  90.09  per  cent,  by  volume. 
Diluted  Alcohol  is  69-68  per  cent,  by  volume,  thus  corresponding 
closely  with  the  70  per  cent,  alcohol  recommended  by  the  Brussels 
Conference  as  a  universal  menstruum  for  tinctures  of  potent 
remedies. 
Acid  Benzoic  is  the  sublimed  and  from  Siam  Benzoin,  and  tests 
are  given  to  detect  the  synthetic.  The  U.S. P.  recognizes  both  with 
preference  for  the  synthetic. 
Acidum  Carbolicum  is  still  retained  as  the  title  for  "  Phenol." 
Hydrochloric  Acid  remains  "  about  25  per  cent.  HCl  "  and  the 
diluted  12.5  per  cent. 
Phosphoric  Acid  remains  25  per  cent.  HgPo^  ;  the  U.S. P.  is  85 
per  cent. 
Aloe  is  restricted  tO'  the  inspissated  juice  of  the  leaves  of  "  Afri- 
can species  of  Aloe  "  with  omission  of  the  exact  botanical  source. 
