cholera  Am  m  mmfti$$fou. 
deserve  and  receive  the  attention  of  the  micro-chemist  and  micfo^ 
scopist,  on  account  of  the  simplicity  and  delicacy  of  the  pro- 
cess, and  the  beauty  of  the  results  which  it  yields,  directly  in 
the  sublimates  themselves,  and  remotely  in  the  effect  of  reagents 
upon  them.  The  few  specimens  of  the  sublimates  of  strychnia, 
morphia,  solanme  and  cryptopia,  and  of  their  reactions,  which 
were  shown  at  the  late  soiree  of  the  Pharmaceutical  Society,  will? 
I  think,  justify  this  expectation. 
I  hope  to  be  able  to  resume  this  subject  on  an  early  occasion,, 
and  to  indicate  more  precisely  the  advantages  which  we  may 
expect  to  derive  from  the  use  of  this  method.—  Lond.  PJiarM* 
Jour.}  June3  1867. 
CHOLERA  AND  ITS  PREVENTION', 
The  probability  of  the  re-appearance  and  spread  of  cholers 
in  this  country  during  the  present  year  seems  to  be  rapidly  gain- 
ing credit  among  those  who  are  familiar  with  its  former  history 
and  progress.  Its  prevalence  in  Germany,  in  the  spring  and 
summer  of  186%  was  limited  to  a  very  few  districts,  and  it  made 
but  little  impression  m  the  chief  centres  of  population— London,- 
Paris  or  Vienna— yet  it  found  its  way  to-  New  York  and  other 
American  cities,  and  suddenly  struck  down  several  thousand 
human  beings,  and  was  only  arrested  by  the  adoption  of  the 
strictest  sanitary  measures,  prominent  among  which  was  the  free' 
use  of  disinfectants.  In  the  autumn  it  seemed  to  whoMy  dis^ 
appear,,  and  gave  us  hope  of  its  entire  eradication.  Bince  then,- 
however,  it  has  spread  widely  over  a  large  portion  of  Europe — * 
especially  France,  England,  Germany  and  Italy.  During  the* 
winter  k  was  reproduced  in  Greece  and  Turkey,-  where  it  made 
its  first  appearance  last  year.  In  England  hardly  a  case  oc- 
curred during  the  past  summer,  yet  in  Liverpool  1700  deaths- 
from  cholera  were  reported  after  the  cold  fall  weather  set  in, 
besides  1009  from  diarrhoea  and  similar  maladies.  In  December 
last,  too,  eight  vessels  arrived  at  the  port  of  New  York  with 
cholera  on  board. 
These  facts  are  significant,  and  show  that  summer  is  not/  the 
only  season  when  cholera  may  prevail,,  although  it  is  usually 
