The  appropriation  was  plainly  insufficient  to  allow  of  operations
at  once  covering  all  the  infected  sections.  The  policy  was,  there-
fore, to  first  eradicate  the  pWe  from  the  district  west  of  the  Alle-
ghany mountains,  and  from  tne  States  of  Virginia,  Maryland,  Penn-
sylvania, New  Jersey,  and  the  interior  counties  of  New  York,  leav-
ing the  expensive  work  which  would  evidently  be  required  on  Long
Island  until  the  last.  With  some  slight  modifications  this  policy
was  adhered  to,  and  early  in  1888  the  wnole  of  the  infected  territory
was  covered,  and  since  that  time  the  regulations  have  been  enforced
as  strictly  as  possible.  The  general  result  has  been  very  gratifying,
and  it  has  been  clearly  demonstrated  that  if  the  regulations  now  m
force  are  continued  for  a  sufficient  length  of  time,  and  if  a  compe-
tent and  efficient  force  is  maintained,  the  disease  can  be  entirely
eradicated  from  the  country.
Owing  to  the  apprehension  existing  as  to  the  danger  of  pleuro-
pneumonia being  disseminated  by  cars  in  which  diseased  cattle  had
been  transported,  the  following  circular  in  reference  to  disinfection
was  prepared  and  sent  to  transportation  companies,  and  has  been
very  generally  observed :

United  States  Department  op  Agriculture,

Commissioner's  Office,
Washington,  D,  C,  May  31,  1887.
To  the  m^anagers  of  dU  railroads  and  transportation  companies  in  the  United  States:

Your  attention  is  called  to  the  fact  that  contagious  pleuro-pneumonia  exists  among
cattle  in  the  States  of  Illinois,  Maryland,  and  New  York,  and  that  the  infected  dis-
tricts in  said  States  have  been  duly  quarantined  by  the  Department  of  Agriculture
in  the  manner  provided  by  the  act  of  Congress  of  May  29, 1884,  establishing  the  Bureau
of  Animal  Industry.
