OF QUADRUPEDS. 
297 
may be seen projecting from the base of the cerebrum to some dis¬ 
tance anteriorly. In the opossum the degradation of form is still 
more complete : the cerebrum is small, the olfactory lobes project 
greatly, and the optic lobes, or corpora quadrigemina, separate con¬ 
siderably between the cerebrum and the cerebellum. 
For additional information we refer our readers to the work itself. 
We well remember the time when an annual tirade used to be 
uttered against comparative anatomy, ex cathedra. The late Pro¬ 
fessor used to say that he disliked comparative anatomy; for its 
mischief was, that it led to comparative physiology and compara¬ 
tive pathology. It Avould be a w’aste of time to shew the import¬ 
ance of this branch of study at the present period : the veterinary 
pupil now very well knows, if he wishes to practise his art in all 
its branches, and extend his medical assistance to all those animals 
that he will be called on to attend, he must be a comparative anato¬ 
mist. He must be acquainted with the structure of the dog, the 
swine, the sheep, and the ox, as well as the horse. The consider¬ 
ation of the difference of structure in different parts, and the differ¬ 
ence of function depending on that difference of structure, and the 
structure and function suited to the situation and wants of the ani¬ 
mal, will unfold to him the most pleasing and sublime view of the 
design and adaptation of Infinite Power and Wisdom and Goodness; 
and the basis of his physiological principles will be rendered broader 
and deeper, in proportion as his survey of living beings is more 
extensive. 
Indeed, in whatever light we view this study, it presents sub¬ 
jects of inquiry worthy of occupying a philosophic mind. The 
multiplicity and the endless variety of the objects about which it 
is conversant, agreeably exercise while they improve our mental 
powers, and their examination affords a healthy employment to our 
faculties and senses. The facts which the science presents to our 
contemplation, independent of their practical utility to the veteri¬ 
nary surgeon, are calculated to awake and engage the attention, 
to recall our thoughts from selfish and visionary pursuits, and to 
subdue the inordinate emotions and passions of our nature. 
Truro, March V^th, 1840. K. 
Cattle Pathology. By R. B. Gelle, Professor at the Veterinary 
School at Toulouse. 
[Continued from p. 60 .] 
Diseases of the Stomachs. 
The numerous branches which the stomachs of ruminants re¬ 
ceive from the pneumogastric, or organic motor, and the sympa¬ 
thetic or secretory nutrient nerve, and the multiplied bloodvessels 
