OBSERVATIONS ON THE LUNG PLAGUE OF CATTLE. 785 
they were kept in the open field and fed tonics (including sul¬ 
phate of iron). I now enjoined him to turn them into the 
stables twice daily, and fumigate for half an hour each time 
with sulphurous acid. This was done, and not another case of 
sickness occurred. 
A wide experience enables me to place a high value on this 
measure as an auxiliary to the slaughter of the sick and the 
purification of the premises by aqueous disinfectants. To its 
proper application certain couditions are indispensable: 1. All 
virulent matters in the buildings, drains, manure heaps, &c., must 
be destroyed. 2. No animal with manifest disease must be re¬ 
tained in the herd, nor have access to it or its pasturage. Chronic 
cases with necrosed encysted lungs must be removed, as well as 
the acutely diseased. 3. The attendants should not be allowed 
near diseased animals. 4. The buildings must be close enough 
to confine the fumes of sulphurous acid, so that they may be 
breathed of sufficient strength for half an hour in succession each 
time. 5. The administrator must be intelligent and reliable, and 
must shut himself in with the animals, that he may watch the 
result, and push the production of the gas as far as the animals 
can breathe without irritation, and at the same time be ready to 
open doors and windows and admit the air promptly in case of 
an over-dose. 
Suppression of Lung Plague on the Large Common 
Pasture of Montauk. —On May 7th, 1879, while on a visit 
to infected herds in Suffolk Co., I learned that some yearlings 
from the same herd that had infected the county had been 
turned out on the great pasture of Montauk, a stretch of 12,000 
acres at the east end of Long Island, on which were 1100 head 
of cattle, the property of about 200 owners. As the yearlings 
from the infected herd were alleged to be sound, we had no 
power to act until the passage of a Bill then pending, which em¬ 
powered us to deal with animals that had been exposed to infec¬ 
tion. On May 21st and 22nd twenty head ot cattle—all that 
could be traced to the infecting herd or to herds with which 
cattle from the infecting one had mingled—were killed, about 
half of those that were opened showing the disease in the 
chronic form. Two more cases of sickness occurred on the 
range on July 15th and August 10th, respectively, both in 
cattle that had had communication with the infecting herd, 
though this information had been withheld at the earlier 
slaughter. Aside from them the whole herd had escaped. The 
reasons of our unprecedented success in Montauk are manifestly 
these—1. The Montauk pasture was large enough to allow ten 
acres to every animal. 2. The cattle belonged to many different 
owners, in lots of from one to fifty head. The cattle of different 
