PLEUROPNEUMONIA IN CATTLE. 
31 
from the infected market of Camden, N. J., to the extent, for a 
time, of one hundred head weekly, many of these going to the 
west. It is thus shown, by indisputable facts, that we are now 
iu incomparably greater danger of the infection of our western 
and southern herds than was any one of the countries above 
named at the time of its infection. The immunity of our west¬ 
ern herds, hitherto, has been an extraordinary piece of good 
fortune; but if this should continue, in the face of the present 
active and unrestricted movement of common store cattle outward 
from the infected eastern States, it will border on the miraculous. 
EVIL . EFFECTS OF INFECTION OF THE WEST-EXTENT OF PROS¬ 
PECTIVE LOSSES. 
To show the certain result of an infection at the source of our 
cattle traffic, and the inevitable general infection that must follow, 
it is only necessary to recall the yearly losses in England from 
lung plague—$10,000,000—as compared with the bovine popula¬ 
tion, 6,000,000 head. At the same rate the United States, with 
our 30,000,000 head of cattle, would lose not less than $50,000,- 
000 per annum. The losses in Australia were in the same ratio 
—500,000 head per annum, out of a bovine population of 2,000,- 
000 head. Those of South Africa were much higher, whole herds 
of 200 head and upwards often perishing without leaving a single 
survivor. 
SUCH INFECTION IRREMEDIABLE. 
Nor is this the worst of the impending infection of the west 
and south. On the unfenced lands of the south and west this 
disease must prove as ineradicable as it has in the steppes of 
Asia and eastern Europe, on the fenceless mountains of central 
Europe, and on the plains of Australia, Tasmania, New Zealand, 
and South Africa. Once lung plague has been planted in Texas, 
or on the plains of Kansas and the west, it must, almost of neces¬ 
sity, defeat every effort to eradicate it. No country similarly 
situated has ever succeeded in rooting it out, and no hope would 
remain to us but in the entire extermination of the cattle on our 
unfenced lands (buffalo included.) 
