. Diseases of cattle, sheep, goats and swine. Veterinary medicine. 108 DISEASES OF THE DIGESTIVE APPARATUS. cuts, injuries or specific eruptions (aplitha, tuberculous ulcerations, the ulcerations of gangrenous coryza, etc.) on the gums indications of gingivitis, periostitis, mercurial poisoning, actinomycosis of the maxilla, and ulcerations of all kinds; on the tongue, of wounds, of simple or specific inflammatory eruptions (aphtha, the ulcerations of actinomycosis, tuberculosis, gangrenous coryza, etc.), as well as the swellings due to superficial or deep-seated glossitis. By the same method
. Diseases of cattle, sheep, goats and swine. Veterinary medicine. 108 DISEASES OF THE DIGESTIVE APPARATUS. cuts, injuries or specific eruptions (aplitha, tuberculous ulcerations, the ulcerations of gangrenous coryza, etc.) on the gums indications of gingivitis, periostitis, mercurial poisoning, actinomycosis of the maxilla, and ulcerations of all kinds; on the tongue, of wounds, of simple or specific inflammatory eruptions (aphtha, the ulcerations of actinomycosis, tuberculosis, gangrenous coryza, etc.), as well as the swellings due to superficial or deep-seated glossitis. By the same method of examination, though with somewhat more difficulty, one can detect abnormal mobility, irregularity of development, caries, etc., of the teeth, the condition of the excretory ducts of the salivary glands, the state of the hard and soft palate, and the existence of fissures, vegetations, polypi and tumours. Salivary glands. The salivary glands, particularly the parotid and submaxillary, should be examined by direct inspection and palpation. Direct inspection reveals the existence of swellings, deformity of parts, increase in salivation, or ptyalism, which sometimes occur in conjunction with foot-and- mouth disease, actinomycosis, acute stomatitis and mercurial poisoning, as well as increase in size of the salivary ducts. Palpation reveals the degree of sensibility of the parts, the existence of oedema, induration, cysts, and, more frequently, distension of the salivary ducts as well as the presence of calculi, tumours, the direction of fistulse, etc. Difficulties may occur, particularly when the submaxillary and parotid glands are afl'ected; but methodical and complete examination will usually enable one to difl'erentiate the conditions. Pharynx. The pharnyx may be examined externally by inspection and palpation, and internally by direct digital palpation. Inspection res'eals possible deformities of the region of the gullet, palpation the condition of the tissues as well as abn
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