MR. W. A. CHERRY’S REJOINDER TO MR. WRIGHT. 
7 
not, — -in fact, in every probability she had — the disease some con- 
siderable time before this. The mare’s general health certainly 
did not give way until the valves of the heart had undergone such 
impairment as rendered them unfit any longer to serve the office of 
valves. The extraordinary pulsations observed in the jugular 
veins were the effect of the reflow of the blood into the vena cava 
through the right auriculo-ventricular orifice ; and the same taking 
place with greater force still on the left side of the heart would 
cause a reflex current of blood upon the lungs, and give rise to dis- 
turbance in the respiration, which, however, was observed only 
occasionally. Moreover, the imperfection in the action of the 
valves appears to have given rise to dilatation of the cavities of the 
heart, to those on the right side more than to those on the left side, 
and to hypertrophy of the former as well, of the right auricle in 
particular. From the highly morbid state of the semilunar valves 
of the aorta, that vessel in its contractions must have forced much 
of its blood back into the heart, that which was at the same time 
forced into the arterial system not only being in consequence less 
in quantity, but having less impetus given to it to move the general 
stream onward : the effect of this must have been congestion in the 
capillaries, from which resulted oedema of the dependent parts of 
the body, the breast, belly, sheath, and legs. Such is the history 
of a case I have never seen a parallel to in the horse, although I 
believe it to be one not so uncommon in the human subject. I have 
made a preparation of the valves of the heart, which I shall be glad 
to shew to any gentleman desirous of viewing it. 
MR. W. A. CHERRY’S REJOINDER TO MR. WRIGHT. 
Mr. WRIGHT having favoured me with some further “remarks” 
on my paper on Coronitis, I must, in justice to myself, make a 
reply. 
I must beg to draw Mr. Wright’s attention to a more careful 
perusal of the original paper; and I think it will appear, unless 
I have not clearly expressed myself, that he has judged errone- 
ously of the tenor of my remarks ; for the term inflammation 
does not once occur, and it is only by inference that such is 
my meaning, for I refer to irritation directly, and by inference 
only to inflammatory action ; and it was not until my first letter 
in reply to Mr. Wright’s remarks, that I distinctly stated my 
opinion as to its being a true phlegmasia , and this more in a 
general point of view than any other. 
