AMjanT;m2RM*}  Varieties.  35 
the  author  found  that  he  could  distinguish  three  degrees,  produced 
gradually  and  successively  by  increasing  doses,  but  varying  in  indi- 
viduals. 
(1.)  A  feebly  soporific  action  and  slight  sedative  effect  upon  the 
sensitive  nervous  system,  which  may  be  accompanied  by  intervals  of 
a  peculiar  agitation,  similar  to  that  produced  by  some  dreams. 
|i (2.)  An  energetic  and  powerful  soporific  action,  with  diminution 
of  sensibility.  Then  follows  a  period  of  calm  slumber  of  variable 
duration,  but  without  apparent  disturbance  to  the  principal  functions 
of  life.  By  means  of  successive  doses  administered  when  the  effects 
of  the  previous  ones  have  nearly  disappeared,  this  slumber  may  be 
extended  during  a  comparatively  long  time. 
(3.)  Anaesthetic  action,  with  complete  loss  of  sensibility  and  mus- 
cular power.  Death  has  generally  been  found  to  follow  when  this 
stage  has  been  reached,  in  consequence  of  the  inability  of  the  organ- 
ism to  sustain  the  increasing  action  of  so  large  a  quantity  of  the  drug 
until  its  complete  transformation  and  elimination. — Pharm,  Journ. 
and  Trans..  Dec.  16,  1871. 
The  World's  Fair  in  Vienna  in  1873. — The  preparations  for  the  proposed 
international  exhibition  of  Vienna,  to  take  place  in  1873,  are  so  far  established 
as  to  ensure  the  execution  of  the  project.  The  site  of  the  building  has  been 
selected,  and  the  English  engineer,  Mr.  Scott  Russell,  is  in  consultation  with 
the  Austrian  architects  in  reference  to  the  plans.  The  park  set  apart  for  the 
exhibition  is  larger  than  has  been  occupied  on  any  previous  occasion,  as  the 
following  table  will  show  : 
London,  Hyde  Park,  1851,  sqr.  meters           ....  81,591 
Paris,  Champs  Elysees,  1855    ......  103,156 
London,  Brompton,  1862          .                   .          .          .          .  186,125 
Paris,  Champ  de  Mars,  1867     ......  441,750 
Vienna,  Prater,  1873     .......  2,330,631 
The  principal  building  will  be  950  meters  long,  but  numerous  separate  buil- 
dings will  find  location  on  the  park. 
The  commission  in  whose  hands  the  programme  has  been  placed  will  endeavor 
to  introduce  some  new  features  in  the  forthcoming  exhibition.  Among  other 
novelties  they  wish  to  have  a  full  display  of  the  raw  material  and  manufactured 
article  of  each  nation,  with  statistical  information  in  reference  to  the  amount 
produced,  and  the  trade  therein.  Special  efforts  will  be  made  to  have  the  art 
collections  as  complete  as  possible,  and  it  is  proposed  to  have  a  loan  collection 
