ON THK DISEASES OF CATTLE, &c. 671 
teemed friend and colleague. Professor Spooner, in the introduc- 
tory address delivered at the opening of the last session, and which, 
placed as I now am, 1 hesitate not to say, that all who heard it 
derived much and valued information from? “I would fain 
hope (said he) that the period will shortly arrive when, by the 
force of knowledge, the grand truth will be deeply impressed 
upon the mind of every man, that it is his duty to 
“ Cast round the world an equal eye, 
And feel for all that live.” 
This, l regret to state, we have sadly neglected ; and as members 
of a liberal profession, following the healing art, our negligence 
and inattention are the more blameable. Let us, then, for the fu- 
ture take for our motto, “ Science and Humanity,' ” and as our 
text “All are but parts of one stupenduous whole.” * 
The inquiry that first arises in the mind is, How are the objects 
in view to be obtained ? how is that which our common sense dic- 
tates, and common feeling tells us is most desirable, how is this 
to be achieved? It is answered, by the application of the same 
principles which have proved to be so effectual in redeeming a 
once no less degraded branch of veterinary medicine — I mean 
equine pathology. When we pass in review the formation and 
structure of animals, we perceive that there is a thread which 
runs throughout and binds the whole together. Similarity of 
structure we find in most cases to be connected with similarity 
of function, and any deviation from that which maybe designated 
normal will consequently be productive of like or similar conse- 
quences ; nevertheless, each animal may be said to be more 
susceptible of certain diseases titan others ; differences also occur 
in the attack of disease upon the same organs in different animals ; 
and these it will be my duty to point out, but, speaking generally, 
the same principles are applicable in treating diseases, whether 
existing in the highest animal of creation, man, or the lowest re- 
duced to subjection by him and made subservient to his use. 
I will now proceed to consider the class and order that each 
of our patients holds with reference to zoological arrangement ; 
but prior to so doing, I wish to remark, that it is my intention 
and desire to render this course of Lectures as efficient as pos- 
sible, considering the position in which I am placed, for the way 
is yet almost untrodden. I shall, therefore, have to track out a 
new path ; yet, by perseverance, any opposing difficulties that 
may present themselves will, I hope, be surmounted ; and as it 
is with our ordinary walk in life, so with this, the longer we 
walk therein the smoother and pleasanter will it. become. 
The plan I purpose adopting is, to consider the separate affec- 
