SOCIETY MEETINGS. 
671 
tumors when found are fibrous in consistence and are from the 
size of a pea to a nut. These tumors generally entail a diffi¬ 
culty of deglutition and respiration, and are sometimes accom¬ 
panied by a cough. We often find on exploration tumors of the 
adjacent glands ; owing to the difficulty of swallowing and 
painful respiration the animal emaciates rapidly and ought to * 
be killed. 
(4) Actinomycosis of the neck. Symptoms vary according 
to the seat of the regions involved. Sometimes we find the 
lesions are seated in the superior part of the shoulder or under 
the skin, the walls of the pharynx, oesophagus, glands, etc. 
In all cases there exists a diffuse tumefaction which little by 
little becomes hard, painful knots which finally discharge a 
thick, creamy, yellowish looking pus rich in actinomycees; if 
not relieved the cavity cicatrizes slowly and with great difficulty, 
the suppuration penetrates more deeply, fistulous tracts are 
formed, connecting different regions, the skin thickens to three 
times its natural size, surrounded by soft tissue which suppu¬ 
rates and discharges pus rich in actinomycotic grains. Outside 
of the lesions in the jaws, tongue, pharynx, we may find actino¬ 
mycosis in any of the glands or other tissues of the body. On 
the lips actinomycosis may be confounded with apthous in 
calves. The tumors appear under the mucous membrane from 
the size of a pea to that of a nut. They consist of a caseous 
purulent centre with fluctuating points and on squeezing will 
iDe found to contain actinomycotic grains. 
In the respiratory passages we find the tumors infest the 
walls of the trachea, which cause trouble of respiration varying 
of course to the size and seat of the tumors. 
Actinomycosis of the lungs. Although the localizations 
have been currently reported in Europe, I believe they are ex¬ 
ceptional in this country, and from my own personal observation 
and from numerous inquiries I have only seen one case, and it 
presented one large tumor in the left lung, which when cut open 
emitted a characteristic pus of a yellowish color, sticky and of 
a doughy consistency, rich in actinomycotic grains. From this 
tumor little fistulous tracts were observed all through the lung 
substance and at the end of each tract small tumors were found 
showing the same characteristics. 
Mediastinum glands were also found to be affected, as well 
as some of the other glands of the body. A thorough examina¬ 
tion of the skin and head of this carcass was made, but failed to 
find any external lesions. Sometimes the evolution resembles 
