PLEURO-PNEUMONIA IN CATTLE. 
35 
This it is, in our own opinion, clearly the duty of the Federal 
Government to do, because no such measure can be satisfactorily 
carried out by State authority alone. In the past, unscrupulous 
men have made a practice of smuggling infected and suspected 
cattle across State lines, and when once safely over, the authori¬ 
ties of the first State are powerless to follow and punish them. 
Similarly unprincipled dealers have driven such infected and sus¬ 
pected cattle into another State, sold them, pocketed the proceeds, 
and promptly returned across the boundary, leaving the unfortu¬ 
nate purchasers ard State officials to deal with the resulting dis 
ease as best they could. Nothing can suppress such acts so well 
as the strong Federal arm, reaching over State lines, and dealing 
out impartial justice to all. 
This prohibition of the movement of cattle out of an infected 
State is not only essential to the protection of adjacent States 
from the contagion, but is no less so to enable the officials of the 
infected States themselves to stamp out the plague within their 
borders. Between two adjacent States with a long stretch of un¬ 
guarded frontier, it is impossible to prevent smuggling of sus¬ 
pected cattle without the power of punishing the transgressor 
wherever found. And so long as much smuggling from State to 
State is possible, the best suppressive work of the officials of one 
State must be perpetually marred and their sanitary achievements 
undone. 
For further considerations on this topic, and for suggestions 
of means whereby sound cattle may be sent through infected 
States into other States, or for export, we beg leave to refer to 
our last year’s report, pages 70 and 71. 
LEGISLATION REQUISITE TO STAMP OUT THE LUNG PLAGUE IN A STATE 
OR DISTRICT. 
The continued prevalence of lung plague in any locality is de¬ 
termined mainly, if not exclusively, by the free movement, inter¬ 
change, and intermingling of cattle. The disease being the result 
of contagion alone, such mingling is essential to its propagation. 
Hence its permanence has been assured in all the large cities in¬ 
vaded, where intercourse between infected markets, dealers’ 
