AmApr^fs^f.rm}        Gleanings  from  Foreign  Journals.  187 
caution  as  stated  above)  to  To  grams;  then  add  0*5  cc.  alcohol  sp. 
gr.  *892, 10  cc,  of  distilled  water  and  2  drops  of  rosolic  acid  solution 
and  titrate  with  l--20th  normal  sulphuric  acid.  Toward  the  end  it 
is  advisable  to  use  delicate  blue  litmus-paper  conveying  the  solution 
•on  the  paper  by  means  of  platinum  wire  ;  1  cc.  of  1— 20th  normal  sul- 
phuric acid  corresponds  to  0*0182  gram  of  alkaloid. 
The  method  may  be  modified  by  triturating  1  gm.  extr.  nux  vomica 
with  3  cc.  normal  ammonia  and  adding  10  gm.  powdered  lime.  The 
first  process  yielded  the  following  results  of  six  experiments  :  18*74, 
18-92,  18*74,  18*56,  18*65  per  cent,  alkaloid. 
GLEANINGS  FROM  FOREIGN  JOURNALS. 
By  Geo.  H.  Ochse,  Ph.  G. 
Test  for  Thymol. — Thymol  dissolved  in  a  pure  solution  of  caustic 
potassa  produces  a  violet  color  changing  to  violet  red  by  agitation  on 
the  addition  of  several  drops  of  chloroform.  This  reaction  takes  place 
only  in  warm  solutions.  0.01  grams  thymol  shows  the  coloration 
quite  distinctly. — Archiv  der  Pharmacie,  1887,  p.  37. 
Salol  Mouth  wash. — Salol,  1  gm. ;  alcohol,  100  gm.  ;  tincture  of 
cochineal,  3  to  5  gm. ;  oil  of  rose,  gtt.  1 ;  oil  of  peppermint,  gtt.  2.  Mix. 
One  teaspoonful  to  a  glass  of  water  for  mouth-wash. 
.  Liquid  Glue. — Sugar  1  part  is  dissolved  in  3  parts  of  water,  to 
this  solution  is  added  one-fourth  as  much  slaked-lime  as  sugar  used 
and  the  whole  heated  to  75  °C.  The  mixture  is  frequently  agitated  for 
several  days  or  until  the  greater  portion  of  the  lime  is  dissolved.  The 
thick  solution  is  then  poured  oif  and  is  ready  for  use.  If  three  parts 
of  ground  glue  are  allowed  to  swell  in  13  parts  of  the  sugar  solution 
and  then  warmed  the  glue  soon  liquefies  and  remains  liquid  without 
impairing  its  adhesiveness.  A  thicker  or  thinner  consistency  is  ob- 
tained by  adding  more  or  less  glue  to  the  sugar  solution.  Concen- 
trated liquid  glue  remains  turbid,  thin  solutions  become  clear  on  stand- 
ing. The  adhesive  properties  of  this  liquid  glue  are  excellent. — Phar. 
Rundschau  (Prag),  Dec.  1886,  p.  1021. 
Perfumes. — The  following  formulae  are  recommended  by  Soxhlet: 
Eau  de  Cologne. — Oil  of  neroli,  5  ;  oil  of  bergamot,  45  ;  oil  of 
lemon,  20  ;  oil  of  lavender,  1  ;  oil  of  rosemary,  1 ;  benzoin,  0.50  ; 
deodorized  alcohol,  1250. 
Court  Bouquet. — Oil  of  bergamot,  10;  oil  of  neroli,  1.50  ;  alcohol 
