Amji°y)r'i8P7h7arm'}    Gleanings  from  the  Foreign  Journals.  371 
and  smooth  ointment  is  obtained,  entirely  free  from  grittiness. — Ibid., 
Dec.  16.  1876. 
Antihydropin  is  the  name  given  by  Dr.  Bogamolow  to  a  crystal- 
line principle  which  he  obtained  from  cockroaches,  Blatta  orientalis,  L., 
and  which  he  has  used  with  success  in  six  cases  of  dropsy,  for  which 
the  cockroaches  in  Russia  are  valued  as  a  popular  remedy.  Dr.  Boga- 
molow has  used  them  in  the  form  of  powder,  tincture  and  decoction, 
and  observed  that  the  quantity  of  urine  is  augmented,  and  albumen,  if 
present,  decreased  ;  the  oedema  of  hands,  feet  and  face  subsides  rapidly, 
the  weight  of  the  body  is  diminished  and  perspiration  increased.  The 
remedy  does  not  disturb  digestion,  nor,  like  cantharides,  irritate  the 
kidneys. — Phar.  Zeitsch.f.  RussL,  1876,  p.  689. 
Hashish  of  Central  Asia,  according  to  Dr.  Preobraschensky,  is 
met  with  in  the  bazaars  of  the  larger  towns  in  the  form  of  flat  cakes  5 
to  15  inches  long,  5  to  10  inches  wide  and  1  to  3  inches  thick,  is  ex- 
ternally dark-brown,  internally  greenish  or  brownish,  hard  and  tough, 
breaks  with  difficulty,  but  may  be  readily  cut  into  thin  pieces,  particularly 
after  being  warmed.  The  resin  is  collected  in  the  spring  from  the 
flowering  tops,  and  kneaded  with  sand  and  water  into  a  plastic  mass, 
which  is  dried  upon  a  clay  floor  until  just  hard  enough  to  be  cut  into 
cakes.  These  are  called  nasha  by  the  Buchanans,  and  hashish  by  the 
Russians,  and  are  exported  from  Bucharia  to  Chiwa,  Tashkent,  Kokant 
and  other  places. 
The  author  has  subjected  this  hashish  to  an  analysis,  in  the  course  of 
which  he  obtained  resin  of  a  balsamic  tolu-like  odor,  a  portion  of  which 
is  insoluble  in  water  ;  a  colorless  volatile  oil  of  a  camphoraceous  and 
terebinthinate  odor,  and  a  warm  and,  at  the  same  time,  cooling,  aro- 
matic and  bitterish  taste  ;  and  a  volatile  alkaloid,  which  in  odor,  taste, 
the  crystallization  of  the  salts,  and  in  its  reactions  with  platinic  chloride 
and  Mayer's  test,  corresponds  with  nicotina.  By  titration  with  sulphuric 
acid,  amounts  of  nicotina  varying  between  *oio6  and  -02223  gram  f°r 
100  grams  of  hashish  were  found.  By  incineration,  hashish  yielded 
50  per  cent,  of  ashes. 
Nicotina  was  also  obtained  from  the  tops  of  Indian  hemp. — Ph. 
Zeitschr.  RussL,  1876,  p.  705-714. 
Volatility  of  Glycerin  and  Nitroglycerin. — Hager  has  found 
(1875)  that  glycerin  volatilizes  slowly  at  the  ordinary  temperature  when 
