( 488 ) 
of the intestinal canal, they multiply in equal times, much less 
vigorously in the former than in the latter. 
If thus we arrive at the conclusion that in not one locality of 
the intestinal canal an increase of lower organisms is seen, there 
can be no question of that canal having “a flora of its own”, 
nor of a distinction between “obligative” and “facultative” in- 
testinal bacteria. Indeed, we find in the whole intestinal canal 
the same species of organisms, chiefly Coli and Coliform bacteria, 
probably because these organisms are so universally distributed in 
nature and, accordingly, with the food get in large numbers 
into the intestinal canal. Furthermore, because by their great 
resistance, — which is also shown by their ubiquity in nature, — 
they are able longest to resist the anti-bacterial influences of the 
intestinal canal. At those places of the small intestine where ingesta 
are present, there are commonly found a number of other bacteria too. 
On the culture-plates these species, either by the quickness with 
which they liquefy the gelatin, or by the great number in which 
they are eventually present, may prevent the appearance of Coliform 
bacteria. The greater part of these organisms possess, however, a 
much slighter power of resistance than the bacteria of the Coli-group, 
and thus die first, so that in the Coecum, Processus vermiformis, 
and Colon adschendens chiefly part of these Coliform bacteria alone 
are found in living state. 
Putrefaction is excluded from the intestinal canal of the rabbit, 
bacteria not increasing there at all. 
TABA EKE 
Total numbers in the whole 
Contents in intestinal canal. BE Lr On Mimi oR: 
Rabbit Hats dead organisms 
eae ‚coutents of the ; 
| 2 ‘| Microscopic. counted. Cultiv. intestine. are alive. 
NOP lie 70 945.727.800.000 | 14.654 .000 | 64.549 15 
>» 2. | 125.250 | 2.784.775.050.000 | 14.298. 700 194.756 5 
Dido TAO 5.229.126.108.000 | 11 774.025 444.123 2 
» Á. | 451.700 669.801.285.000 | 5.736.732 116.755 8 
» 5. | 142.500 | 7.743.706.142.000 | 8.100.375 955.967 1 
DG. es 6.527.707 .536.000 | 1.388.124 4.702.538 0.2 
De 201 1.104.286.623.000 | 2.199.748 502.004 2 
» 8. { 128.750 | 6.186.609.671 .000 723.714 8.548.417 0.1 
