EDITORIAL. 
185 
of  595,119;  while  in  the  same  years,  out  of  the  more  numerous  population, 
082,795  persons,  living  on  21,909  acres  of  the  higher  ground  of  60  feet  and 
upwards,  only  2,949  persons  died  of  cholera,  including  all  the  deaths  in 
the  district  of  St.  James. 
On  the  lowest  ground,  taking  the  mean  of  the  two  epidemics,  thirteen  in 
1,000  of  the  population— on  the  highest  ground  one  in  1,000  of  the  popu- 
lation— were  destroyed  by  cholera. 
At  the  intermediate  stages  of  elevation  was  the  danger  of  dying  by 
cholera  intermediate  ?  To  solve  this  important  question  as  regarded  the 
epidemic  of  1849,  London,  was  first  sub-divided  into  terraces  differing  20 
feet  in  elevation  ;  and  if  the  same  course  is  pursued  now,  it  is  found  that 
in  the  two  epidemic  years  15,562  persons  died  of  cholera  on  the  first  terrace 
under  20  feet  of  elevation;  3,757  on  the  second  terrace  of  ground,  20  and 
under  40  feet  high;  2,301  on  the  third  terrace,  40  and  under  60  feet; 
2,279  on  the  fourth  terrace,  60  to  80  feet  high ;  392  on  the  fifth  terrace,  80 
to  100  feet;  278  on  the  higher  terraces  of  100  feet  up  to  350  feet.  The 
population  was  850,000  on  the  lowest  terrace  ;  and  about  equal,  or  400,000, 
on  the  second,  the  third,  and  the  fourth  terraces ;  while  it  was  142,000  on 
the  fifth,  and  121,000  on  the  higher  terrace  or  terraces. — Medical  News. 
€Mtorial  ^Department. 
American  Pharmaceutical  Association. — This  body,  at  its  last  meeting 
in  Cincinnati,  adjourned  to  meet  in  New  York  city,  on  2d  Tuesday  (11th) 
of  September  next.  As  the  period  is  a  favorable  one  for  the  business  visits 
of  our  southern  and  western  friends,  we  hope  that  they  will  try  and  make 
it  convenient  to  attend  the  meeting,  and  give  at  least  the  countenance 
their  presence  will  afford  to  a  movement  calculated  greatly  to  benefit  the 
entire  pharmaceutical  profession.  It  is  suggested  that  as  hereafter  these 
meetings  will  have  a  more  scientific  cast,  and  be  more  interesting  to  all 
who  may  attend,  it  is  to  be  hoped  that  each  individual  will  bring  a  quota 
of  information,  statistical,  scientific,  or  practically  useful,  and  that  the 
proceedings  may  embody  these  in  a  digest  for  the  benefit  of  those  not  in 
attendance. 
Cavendish  Society. — Our  readers  who  are  interested  in  this  society  are 
requested  to  examine  the  advertisement  in  the  appended  sheet.  We  regret 
to  learn  that  the  first  volumes  of  Lehmann's  Physiological  Chemistry  are 
already  out  of  print,  and  cannot  be  supplied  to  future  subscribers.  The 
agent  announces  the  receipt  of  two  new  volumes  for  the  subscribers, 
Bischof's  Elements  of  Chemical  and  Physical  Geology  (vol.  1st.),  and 
