552 
W. E. A. WYMAN. 
3. Acute and chronic bronchitis. 
4. Pneumonia. 
5. Pleurisy. 
1. — Pharyngo-laryngeal lesions^ produced, for instance, by 
the irritative process accompanying eruption of the sixth molar 
or the presence of a foreign body, such as the larva of the 
cestrus equi, once observed by the writer, is accompanied by a 
cough closely resembling a purely laryngeal cough. In the 
latter instance the animal coughed frequently in a distressing 
manner and was very sensitive on pressure over the region of 
the arytenoids. The larva was situated close to the base of the 
epiglottis. 
2. — Acute laryngitis gives rise to a frequent, distressing 
spasmodic cough, each cough being followed by a wheezing in¬ 
spiratory sound. Depending on the stage of the phlegmasia the 
cough may be strong, short, painful, hollow, wheezing or 
strangling. The animal is easily coughed on pressure, stretch¬ 
ing the neck while doing so. This peculiar cough, either 
coughed with an open or closed glottis, with its subsequent 
wheezing inspiration, the peculiar stretched state of the head 
and neck, the anxious expression of the eyes and the attempts 
to modify or suppress the cough are absolutely characteristic. 
Chronic laryngitis is accompanied by an occasional, open 
glottis cough, short, tight, somewhat barking in character. This 
cough manifests itself especially when the animal leaves a warm 
stable and reaches a cold atmosphere; further, when going be¬ 
yond a certain speed, cough is apt to appear. In this disease 
the tendency to cough is greater at one time than at another. 
Slight pressure, especially when exerted upon the posterior por¬ 
tion of the larynx—the pars respirator!a—is productive of 
cough. 
3. AciUe bronchitis. —Depending on the extent and intensity 
of the diseased area, the cough is often short and sharp, or when 
severe, exceedingly painful, short, evasive, tight. In such a 
case there are regular paroxysms distressing to witness, the ani¬ 
mal coughing with a partially closed glottis. 
