596 DISEASES OF THE MOUTH, TONGUE, ETC. 



of denuded e]3ithelmm ; often there is an accumulation of ropy 

 saliva and a foBtid smell. According to tlie extent of the ex- 

 coriation is the difficulty exhibited in sucking. Usually in the 

 foal, and occasionally in the dam, this condition is accompanied 

 with a deranged state of the alimentary canal. 



2. Vesicular Stomatitis. — This modification may be observed 

 in both young and adult animals. Appearing sometimes as an 

 accompaniment of the simple form, it more generally starts 

 into existence with its own independent characters of minute 

 round vesicles, situated on the inner sides of the cheeks, around 

 the angles of the mouth, and along the sides and frsenum of 

 the tongue. These vesicles both appear and rupture suddenly, 

 their contents being more or less turbid, rarely clear. On 

 rupturing they leave a minute ulcer, with slightly elevated 

 margins, and surrounded with a hyperaimic zone. Frequently 

 discrete, they may coalesce and form larger vascular-looking 

 excoriations. In some cases, where the general conditions, 

 intrinsic and extrinsic, are bad, these sores seem indisposed 

 to heal, and have a coating of a plastic material adhering to 

 their raw surfaces ; while in others they seem associated with 

 the mucous follicles, which appear tumefied, and at times 

 plugged with a pasty granular material. 



I have observed this form of stomatitis in some developments 

 associated with certain febrile diseases ; more frequently, how- 

 ever, no general disturbance is appreciable. 



3. Pustular Stomatitis. — This manifestation of the inflam- 

 matory action I have only observed in adult animals. In some 

 instances it appears as the sequel of the preceding. The 

 vesicles, remaining unbroken for a longer time, gradually 

 acquire in their contents an ojjalescent and puriform char- 

 acter, and leave, on rupturing, a rather deeper vascular-look- 

 ing ulcer. More frequently, however, the lesions form as 

 minute indurations or yellowish spots, as if the epithelial 

 elements were being raised from infiltration. These excres- 

 cences gradually become better defined, develop fluid contents, 

 form distinct pustules, and ultimately rupture, discharging 

 their contents, leaving well-marked, pit-like ulcers. 



The existence of these pustules, while in many instances 

 <lependent on a vitiated state of the blood from previous 

 disease, or contamination with a specific disease element, or 



