ON THE PATHOLOGY OP CATTLE. 
251 
considerable quantity of blood and serum. The interior of the 
lung on the same side was completely filled with coagulated blood — 
in fact, was one mass of, what I must call, pulmonary apoplexy. 
On the inferior part of the affected lobe there was an extensive 
laceration of the investing pleura. The left lung was healthy, 
and of its natural colour. 
On making a dissection of the heart, which was altogether 
larger than the natural size, I found considerable hypertrophy and 
dilatation of the right ventricle. The cow was reported as evincing 
no symptoms of illness. She occasionally had a cough, but took 
her food, and rumination was performed naturally and uninter- 
ruptedly. 
I scarcely know whether to look upon this as a disease prima- 
rily arising from pulmonary congestion, or whether, from the 
hypertrophied condition of the right ventricle, the blood was 
propelled with such force through the pulmonary vessels as to 
occasion rupture of their parietes. 
The consideration of this and other instances has induced me 
to fear that a mistaken impression prevails, that the attention of 
the veterinary surgeon is exclusively directed to the horse; and I 
have frequently found parties disposed to believe that my profes- 
sional exertions were solely devoted to that noble animal. The 
pre-eminence assigned to that branch of the profession in former 
days may have led to this erroneous impression. Notwithstanding 
the reduction of horse establishments (from the operation of rail- 
roads and other causes) in the metropolis the veterinary practi- 
tioner may still find the horse monopolize the greater share of his 
time and attention ; but in the rural districts it is indispensably 
necessary that he should be well acquainted with diseases of other 
domestic animals upon which he may frequently be called to exer- 
cise the healing art. Nor is it only as a source of emolument that I 
deem this enlarged view of our professional duty to be most de- 
sirable, but, as an investigation of natural science, it is an instruc- 
tive and interesting pursuit. * 
The struggle after knowledge is full of delight. As the material 
chase brings fresh vigour to our pulses and activity to our bodies, 
so the intellectual chase renews and invigorates the faculties of 
our minds. 
The appointment of a Professor of Cattle Pathology has given to 
the junior members of our profession a better opportunity than 
was ever enjoyed by the seniors of our veterinary body ; and under 
the new character by which we are incorporated, I trust, as this 
extensive and important branch of the profession must necessarily 
form a leading part of the initiatory studies, the students will see 
the direct obligation of a familiar acquaintance with its several 
