470 
J. F. WINCHESTER. 
The larynx was sent to Dr. J. M. Parker, of Haverhill, and 
he makes the following microscopic report: 
August 29, 1896. 
Dr. J. F. Winchester, Lawrence , Mass. 
Dear Sir :—The larynx of the cow shows in its middle ventricle an ulcerous patch 
about of an inch in diameter. Posteriorly to the vocal cords there are also two raised 
epithelial patches showing on section a dense fibrinous exudate, beneath which is a 
mass of small celled proliferation. On staining with alkaline methylene blue 
(Loffler’s) solution, numerous short, thick, slightly curved bacilli resembling the bacil¬ 
lus of diphtheria were seen. Yours truly, John M. Parker. 
My object in presenting this paper is to stimulate further 
investigation in this subject that the true nature of this disease 
may be demonstrated. 
Prof. Osier in his work on the Practice of Medicine, (edition 
1892) says, u Cows are not known to be affected spontaneously.'’ 
The literature relating to veterinary medicine (in English) that 
I have had the privilege of consulting, does not make mention 
of the existence in cows of such* a malady. 
Having presented to you the clinical symptoms and the post¬ 
mortem appearances as observed by me ; a description of the 
microscopical lesions with the demonstrated presence of the or¬ 
ganisms by those trained in such work, I leave the further in¬ 
vestigation of the subject to those better qualified to carry it on. 
DISCUSSION. 
The President: —Gentlemen, you have heard this extremely 
interesting and all-important paper, and it is now open for gen¬ 
eral discussion. And I hope that this paper will be as freely 
and as speedily discussed as possible, so that we will be able to dis¬ 
pense with the great amount of business unfinished, and before 
us. I will call upon Doctor Gill to open this discussion. 
Doctor Gill :—I know very little about diphtheria. What I 
have to deal with is the anti-toxine. I do not think I can say 
anything on the subject because I have not had any experience 
in that particular line. 
Doctor Clement :—I have comparatively nothing to say upon 
this subject, except to congratulate Doctor Winchester, and the 
Association, for the able manner in which he has presented this 
subject, and I think we should be very much pleased that these 
cases have been brought before us in that they present patho- 
