42 OYSTERS AND DISEASE. 
Table showing Differences of Reaction. 
Source. 
Fermentation, 
Glucose 
Gelatine. 
Indol 
Reaction. 
Coagulation. 
Potassium 
Iodide 
Potato 
Gelatine. 
I. — B. typhosus. 
I Institut Pasteur 
None. 
None. 
None. 
Very small 
growth. 
2 From spleen of Typhoid patient 
3 Prof. Delepine 
4 Prof. Wright (Netley) 
Slight trace. 
Clot slowly 
formed. 
None. 
None. 
i! 
. Dr. Sims Woodhead 
„ 
^ 1 

" 
" 
9 J 
Dr. Kanthack 
lo Institute of Preventive 
Medicine 
„ 
„ 
„ 
II.— B. coli. 
I Institut Pasteur 
\ > Cli Illdl KCtl , 
"Vltirlcccl pinlc 
Marked 
Growth 
abundant. 
2 Prof. Delepine 
Slig"lit pink. 
3 Prof. Wright 
,, 
Pink. 
„ 
„ 
4 
Slight pink. 
5 
Marked pink. 
6 
Pink. 
„ 
„ 
7 
8 
Dr. Sims Woodhead 
„ 
„ 
„ 
9 
» 
lo 
12 D 
•. Kanthack 
Slight pink. 
13 
Absent. 
14 Institute of Preventive 
Medicine 
Sumniary of Constancy or Variability of Reactions. 
B. typhosus. — (i) Fermentation test; no gas formation. (2) Indol reaction; slight 
indication in one case. (3) Milk coagulation ; slight clot in one case. (4) Potassic 
iodide potato gelatine ; characteristic invariably. (5) Potato ; constant with usual 
precautions, (6) Reaction in gelatine ; marked differences of rate of diffusion. 
