^m'ju0ne?i892arm'}  Gleanings  from  the  German  Journals.  309 
The  silver  tests  set  aside  for  eight  days  showed  no  change  in  I  and 
II,  but  in  the  others  a  precipitate  had  formed;  V  was  rejected  at  this 
stage,  and  the  other  four  examined  again  after  a  lapse  of  eight  days 
(24  days  from  the  start)  showed  no  change  with  the  silver  test,  but 
in  IV  a  distinct  phosgene  odor  was  recognizable,  while  in  III  the 
sulphuric  acid  was  tinged  yellow;  after  32  days  the  silver  test 
showed  opalescence  in  I,  III  and  IV,  while  II  remained  unchanged; 
after  allowing  these  tests  to  stand  eight  days  all  but  II,  which  still 
remained  clear,  contained  slight  precipitates.  From  these  results  it 
appears  that  it  is  possible  to  prepare  pure  chloroform  by  other  than 
Pictet's  method,  the  sample  II  even  being  purer  according  to  this 
test  than  chloroform  Pictet. — Schzvz.  Wochenschr.  f.  Chem.  u.Pharm., 
1892,  153. 
Araboi-gum  is  an  artificial  product  containing  water  15-12  per 
cent.,  ash  o-8i  per  cent.,  maltose  24*23  per  cent.,  dextrin  54-48  per 
cent.,  starch  4-18  per  cent.,  acidity  expressed  in  percentage  of 
KOH  o  43  per  cent.  The  following  method  gives  a  similar  product : 
100  gm.  wheat  starch  are  heated  with  500  cc.  water  containing 
10  gm.  oxalic  acid  in  a  water-bath  at  900  C.  for  four  hours,  stirring 
occasionally;  after  neutralizing  with  powdered  marble  and  filtering, 
the  transparent  yellow  filtrate  is  evaporated  and  dried  in  a  water- 
bath  until  the  mass  retains  only  14  per  cent,  moisture. — F.  M.  Horn, 
Pharm.  Post,  1892,  525. 
Thiolinic  Acid  is,  according  to  a  patent  application,  made  by 
heating  6  parts  linseed  oil  and  I  part  flowers  of  sulphur  until  a 
decided  frothing  takes  place  (at  about  2300  C),  allowing  to  cool 
and  heating  this  sulphur-oil  on  a  water-bath  at  80-IOO0,  with  an 
equal  weight  of  sulphuric  acid  sp.  gr.  1-840  until  evolution  of 
sulphur  dioxide  ceases  and  a  uniform  liquid  results  ;  this  is  poured 
into  a  large  quantity  of  water  and  thoroughly  manipulated  so  as  to 
remove  the  excess  of  acid,  collected  upon  a  strainer  and  dried. 
This  constitutes  the  thiolinic  acid,  a  friable,  amorphous  mass  of 
dark  greenish-brown  color,  sintering  at  65-700  C,  and  containing 
about  14-2  per  cent,  sulphur;  it  is  insoluble  in  water,  but  is  soluble 
in  alkalies  and  alkaline  carbonates,  from  which  solutions  sodium 
chloride  precipitates  the  salts ;  it  is  intended  as  a  therapeutic 
agent. — Apotheker  Ztg.,1%92,  227. 
Analgene,  or  more  exactly  orthooxethyl-  and  monoacetylamido- 
chinoline,  is  the  result  of  an  endeavor  to  unite  the  acetamido  and 
