TABLE 12. _Showing the Percentage Incidence of Various Forms of Inflammation in the Alimentary Tract of Ungulata._ ══════════════════════════════════╤═════════════════╤═════════════════ Lesion │ Group A │ Group B │ Perissodactyla │ Ruminants and │ and Swine, Wart │ Relatives Per │ Hogs, Peccaries │ cent. │ Per cent. │ ──────────────────────────────────┼─────────────────┼───────────────── Acute fermentative gastritis │ 18.│ 2.1 All other forms of gastritis │ 16.3│ 5. Acute toxic or fermentative │ 1.6│ 2.3 enteritis │ │ All other forms of acute enteritis│ 1.6│ 8.4 Chronic enteritis │ 0.│ 1.9 Colitis and typhlitis │ 0.│ 3.1 ──────────────────────────────────┴─────────────────┴───────────────── Ungulates as a class stand in a position equivalent to the Primates in the incidence of gastrointestinal diseases. They show a conspicuous percentage of cases apparently due to incorrect food and, coupled with this, a high percentage of gastric involvement, being exceeded in this respect by the marsupials only (there is an adequate reason for this—see below). Cases ascribed to bacterial or parasitic agents are not numerous. Analysis of the records of the two groups discussed above brings out some interesting facts. Consultation of Table 12 shows percentage comparisons, based on the number of autopsies, of lesions in the various sections of the tract. Group A, that with the simple stomach and the short capacious colon, is represented by forty-four specimens, while Group B embraces 321 animals. Perhaps the use of these two widely differing figures for comparison is open to some objection which might be final and decisive were not the figures so definite. At a glance one can see that Group A has involvement more marked high in the tract while Group B has more disease in the intestine and colon. Certainly gastritis is more common (five times) in the A than in the B group, while enteritis is more common in B (over three times). No case of chronic enteritis or of involvement of the colon is recorded in animals with a simple stomach and a wide hind-gut. This may be read either in terms of vulnerability of the stomach or in the degree of resistance of the respective groups.