PHTHISIS PULMONALIS VERMINALIS. 
7 
throughout with a hard coagulum. The extended surface of the 
lungs was paler than normal, its tissue emphysematous in places, 
and slightly mottled in others. Upon cutting through the large 
bronchia, we found a large number of thread-like worms, from 
§ of an inch to 1£ inches in length, and in knots or masses. 
These were immersed in frothy mucus, which seemed to fill the 
air passages completely. 
These worms were found in every branch and ramifications of 
the air passages, to their utmost extremity. A few lobules seemed 
congested, and in some places the capillary blood vessels were 
broken down, and slight hemorrhage had taken place, small 
clots of blood being found in the bronchial tubes. It was 
noticed that all the tissues of that animal, as well as those of such 
as were killed, had a sourish smell. The lymphatic glands of 
the throat and abdomen were enlarged: other abdominal organs 
healthy. 
There was no treatment pursued with the calves, beyond 
slight fumigations. The other cattle were treated by inhalation 
of burning sulphur. The internal treatment consisted of turpen¬ 
tine, iron and gentian, after they had been removed from the 
place where they had been kept. I have examined the lungs of 
a number of the old cattle destroyed since my first visit, and have 
not been able to find any of the filaria. 
Allow me now to detain you a few moments longer in order 
to show you the size of the eggs of these worms, and to say a 
word as to the tenacity of life of the embryo. The specimen which 
I am going to present, I owe to the kindness of Mr. Norman 
Mason, an excellent microscopist of Providence, B. I. Upon 
measurement, this gentleman found the egg to be from Vsooto Vsoo 
of an inch in diameter. In conclusion, and to show you how long 
after animal is destroyed, and no matter what poisonous prepara¬ 
tion is used, life remains in the embryo, I will state that the 
lungs, from which these specimens were obtained, were sent to 
the office of the Board of Health on a Tuesday, and the exami¬ 
nation made on Thursday. Some of the filaria were then soaked 
in picric acid and glycerine, from 30 to 40 minutes, and then 
placed under the microscope, when the embryo could be plainly 
seen moving in the egg. 
