(73) 
In Table VI the results of a second sample of faeces ate recorded. 
TABLE VI. Faeces N° 2, placed at 37° C. 
Periods at bg 80 oS |e2atsee (SES elk 
= oo eet) See oO oo DEE Ol | eas 
Sac | ¢ (ise Se 6 |e oO.) SEE ee 
37° C. a3 Se BSA 8658)! Bo. San 
dS aS =S $s ATS RR El RER 
Se Ae Pe eae, Jas ‘Soa 
Direct examination! 10.440 15.15 AA 579000 100 57000 782 
After 1 day 11 138 19.87 27 .857000 — 39 0/, 61300 ADA 
» 3 days 41.070 19.18 24. 494000 — 45 0, | 298500 82 
ny bh ap 10.510 19.09 35297000 — 20 0/, 75600 4OT 
IE oy 10.830 16.01 12..580000 — 713 0/, 50300 250 
Here again a strong decrease (after 8 days with 73 pCt.) of the 
total number of present bacteria, and also no increase of cultivable 
organisms (after 8 days there are as many as at first). 
It appears thus that in the faeces circumstances occurred, which 
counter-acted the propagation also of the cultivable, consequently of the 
certainly living organisms; about the being, or not being fitted for 
increase of the non-cultivable bacteria, these experiments could accord- 
ingly not teach us anything. We should hence try to improve the 
conditions of increase for the bacteria in the faeces. 
Starting from the supposition, that perhaps a special substance 
(or substances) in the faeces caused the death of the cultivable and 
decidedly living bacteria, or at least prevented their propagation, it 
might be expected that dilution of the faeces would also attenuate 
this anti-bacterial influence; this expectation has been completely 
realized. In Tabel VII a third sample of faeces is referred to, 
treated in quite the same way; even after 112 days the number of 
bacteria cultivable on alkalin gelatin is not increased; this number 
continues mutating from the beginning to the end, between 322 and 
743 on 1 mer. of faeces, which mutations may be reckoned to fall 
quite within the limits of the errors of the method. The total number 
of bacteria has again regularly diminished and, after 112 days amounts 
to only 5 pCt. of the primitive number. 
Quite diferent, however, is the process in the dilute faeces (Table 
VIII); the faeces-emulsion, diluted with 100 em°. water, obtained 
in the ‚direct examination” (Table VIT) was likewise placed at 
