small, hardened red spots in that lung, with some
tender, weak adhesions; but most of the right lung was healthy.

Case 9.--Sick four weeks. Killed.

Autopsy.--Right lung hardened at base; adherent to diaphragm and costal
pleura; lump separated on one side only. Cyst beginning to form, outside
of separation; pus between cyst and lump, but in a very small quantity.

These two cases settle the character of the lump, and the manner of the
formation of the cyst; the lump being lung and lymph, cut out by
suppuration,--the cyst being organized, smoothed off by suppuration,
friction, etc.

Case 10.--Killed. Hair looked badly; but the cow, it was said, ate, and
appeared well. This case, however, occurred in a herd, of which no
reliable information, in detail, could be procured.

Autopsy.--Base of lung hardened, adherent to diaphragm; containing a
cyst, in which was a lump, of the size of a quart measure, but little
pus. This lump had air-tubes running through it, which were not yet cut
off by suppuration; and in one place, the cyst was perforated by a
bronchial tube, letting in the external air to the lump, which was
undergoing disorganization, and swelling badly. When cut into, it did
not present the red, mottled, organized appearance of those cases with
air-tight cysts.

Quite a number of other cases were examined, but these ten present all
the different phases. One or two cases are needed of an early stage of
the disease, to settle the point, whether, in all cases, the primary
disease is lung fever, and the pleurisy a continuation, merely, of the
primary disease; together with some six or eight cases, during five,
six, seven, eight months from attack, and so on till entire, final
recovery. Some cases were sick almost a year since, and are now
apparently quite well; perhaps all the lump and pus are not yet gone.
Many practitioners think that no severe case will ever recover, and some
think that none ever get entirely well. Others, however, can see no
reason why, as a general rule, all single cases should not recover, and
all double cases die.

The disease was the most fatal in Mr. Chenery's (the original) herd,
although it was the best-fed and the warmest-stabled. He attributed the
fatality, in part, to a want of sufficient ventilation. The other herds,
in which all the fatal cases occurred in two hours, consisted,
originally, one of forty-eight head, of which thirteen died, or were
killed, to prevent certain death;