Am,j£.?SMm-}  Gleanings  from  the  German  Journals.  9 
alumnol  darkens  somewhat,  buf  without  loss  of  medicinal  virtue. 
Alumnol  solutions  precipitate  albumen  and  gelatin,  but  the  pre- 
cipitates are  soluble  in  excess  of  these  substances,  in  consequence 
of  which  this  astringent  antiseptic  will  not  cause  the  clogging  up 
of  pus-secreting  sores.  A  special  use  of  the  substance  in  ophthalmi- 
cal  practice  is  noted  by  Wolff  berg,  a  four  per  cent,  solution  dropped 
into  the  eye  arresting  the  flow  of  tears  for  several  minutes,  thus 
enabling  an  easy  examination. — Heinz  and  Liebrecht  (Berl.  Klin* 
Wochenschr)  Pharm.  Ceutralhallc,  1892,  697. 
Analgene. — Since  the  introduction  of  this  compound  (Am.  Jour. 
Pharm.,  1892,  310)  it  has  been  found  that  the  presence  of  the 
benzoyl  radical  in  place  of  the  acetyl  radical  was  more  desirable. 
The  name  analgene  is  henceforth  only  applied  to  the  tf-ethoxy- 
ana-monobenzoylamido-chinoline,  C9H5NOC2H5NHCOC6H5 ;  it  is 
recommended  as  an  antineuralgic,  in  doses  from  0*5—2  grams. — 
Pharm.  Ceniralhalle,  1892,  658. 
Kresin. — A  name  given  to  a  solution  of  cresol  in  a  solution  of 
sodium  cresoxyl  acetate  containing  25  per  cent,  cresols  ;  the  solu- 
tion is  miscible  with  water  and  alcohol  in  all  proportions  ;  it  is 
less  poisonous  than  phenol,  and  is  said  to  have  four  times  its 
antiseptic  value  and  as  a  disinfectant  to  be  especially  valuable.  In 
one-half  to  one  per  cent,  aqueous  solutions  it  is  deemed  of  value  in 
the  treatment  of  wounds. — Pharm.  Centralhalle,  1892,  69S. 
Phenolin  or  water-soluble  phenolin  constitutes  a  disinfecting  agent 
made  of  crude  cresols  and  potassium  soap. — Pharm.  Centralhalle, 
1892,  698. 
Sodium  peroxide,  a  commercial  article,  appears  as  a  deliquescent 
yellowish,  sintered  mass  or  powder;  it  is  soluble  in  water  with 
evolution  of  considerable  heat  and  liberation  of  oxygen  ;  in  dilute 
acids  it  is  soluble,  forming  hydrogen  peroxide  if  the  solution  be 
kept  cool.  Because  of  its  strongly  alkaline  character  its  use  as  a 
bleaching  agent  is  restricted,  since  it  attacks  animal  fibres  ;  a  recent 
patent  application  proposes  the  use  of  magnesium  salts  with  the 
sodium  peroxide,  whereby  magnesium  peroxide  is  produced,  which 
acts  very  favorably  as  a  bleaching  agent  for  wool,  silk,  mixed  fibres, 
feathers,  bristles,  bones  and  ivory;  bleaching  in  this  manner  is  more 
quickly  finished  than  with  the  use  of  hydrogen  or  barium  peroxide. 
Under  the  name  Oxygen-powder  a  mixture  of  magnesium  sulphate 
and  sodium  peroxide  can  be  purchased  ;  in  its  use  it  is  essential  to 
