CORYZA IN CATTLE. 
331 
The symptoms of coryza are the same—snorting, laborious 
breathing. The discharge the same—aqueous, transparent at 
first, and gradually becoming opaque, mucous, purulent, and 
bloody. 
Periodical Coryza .—There is a periodical appearance of co¬ 
ryza in the ox not observed in the horse. During the winter 
season, and probably from our mismanagement—from undue 
exposure of the animals to cold, or to extremes of heat and cold 
—there is a considerable nasal gleet; not interfering much with 
health, but unpleasant to the eye and troublesome to the animal, 
and which, in despite of all our medical treatment, will remain. 
Do not let us be too much alarmed, for when the genial warmth 
of spring returns, it will disappear as suddenly as came its attack. 
Yet not always; it has continued purulent, green, bloody, for 
years, and the health has been scarcely affected, because the 
Schneiderian membrane has not been previously exposed to the 
same injurious and debilitating influences as in the horse. 
Therefore it is that the farmer scarcely regards a cough, although 
a harassing and long-continued one, in his cattle, for in the 
majority of instances the beast carries its usual flesh, and yields 
its full quantity of milk ; and it is only when the milk fails, and 
rapid emaciation is perceived, that he begins to look about him. 
Caution to the Practitioner. —You, gentlemen, I hope, will 
not be so apathetic, if you have the power to interfere ; for cases 
will occur, and perhaps too frequently for the full maintenance 
of your professional reputation, in which, as I have just told you, 
the inflammation will extend to the fauces, and creep down the 
trachea, and invade the lungs, and lay the foundation for tuber¬ 
cles, vomicae, and death. 
Treatment .—If you have the opportunity without seeming to 
look out for, and unnecessarily to make, cases, you will warn 
the farmer of the imprudence and danger of neglect, where in¬ 
flammation of any portion of the respiratory passages is evident. 
In treating the animal with inflammation of this, the first of 
the respiratory passages, you will anxiously inquire whether the 
disease may not have proceeded further. Is there cough, and 
that plainly giving the animal pain? any increased labour in 
.breathing? diminution of appetite? suspension of rumination? 
fever? ascertained by the symptoms just enumerated, but more 
by the pulse. Does that much exceed 40, the natural standard 
in a healthy middle-sized animal? You will in cattle, as in the 
horse, best examine the pulse where the submaxillary artery 
passes over the edge of the lower jaw to be distributed on 
the face; but you must look for it considerably nearer to the 
the tuberosity of the lower jaw than you find it in the horse. 
