184 DISEASE IN WILD MAMMALS AND BIRDS 
ous. From the observations of Kitt, Strassberger 
and some others, the normal flora of domesticated ani- 
mals is subject to wide variations so that our observations 
must receive confirmation before they are finally 
acceptable. We have on several occasions isolated from 
carnivorous intestines Bact. paracoli, Bact. suipestifer 
and other members of this group. We have no rehable 
cultural data upon the herbivorous intestine and can only 
quote the Gram pictures as mentioned above. On two 
occasions, an eland and an elk, a very large number of 
forms corresponding to necrosis bacillus were seen; to 
this organism Kitt gives considerable power in the 
production of necrotizing processes. 
The Table. 
Our records have been analyzed from the standpoint 
of diagnosis and the most probable cause. The first will 
be taken up in discussing each of the orders. The prob- 
able causes are divided into food, bacteria, animal 
parasites, physical objects and undecided, in other words 
a classification based upon the most prominent or definite 
evidences as seen at postmortem combined when possible 
with antemortem observations. When findings were 
inconclusive or contradictory, cases were called unde- 
cided, naturally a very large group. Fermentative 
processes in the presence of obviously undigestible 
material, are classified with food as a cause. When evi- 
dences of septicemia existed in absence of the other 
factors, it is held that bacteria were responsible. Cases 
were grouped under animal parasites when these were the 
most definite findings. Physical objects are relatively 
unimportant and self-explanatory. To the etiological 
chart there are appended columns intended to show the 
percentage or case incidence of the disease of the grosser 
subdivisions of the gastrointestinal tract which indicate 
in a general manner what part of the tube in the various 
orders is most susceptible to disease. While of course 
