experiments that it may be avoided, if, when the disease appears in a 

 locality, the hogs are put in pens or small lots, where disinfection can 

 be thoroughly carried. pu>:. ; 



The problem of distoiv^ring a practical and efficient means of pre- 

 ventip^ ;h(>g oholeraj hs^s Jtje^h a most intricate and difficult one, but it 

 is well wortti the most' thorough study, because the conclusions which 

 are reached will doubtless apply more or less directly to all the conta- 

 gious fevers of men and animals. 



D. E. SALMON, 

 Chief of the Bureau of Animal Industry, 

 Hon. J. M. Rusk, 



Secretary of Agriculture. 



