ee. 1 ee Ss 
967 
examples of bacilli from Manchuria (Rio-yang and Gai-ping) which I 
tested with the anti-dysenteric serum of our Government institute. 
Experiments in cross bacteriolysis were also performed—that is, the 
action upon a non-acid strain by an immune serum prepared with an 
acid strain, or vice versa, was studied. In these experiments I have used 
only the sera of rabbits and have purposely avoided the employment 
of those of goats and horses, since it has been stated that these animals 
sometimes furnish large amounts of secondary agglutinins. 
In the tables only the final results are given, since it seemed desirable 
at the same time to compare them with those of fermentation and agglu- 
tination. 
TasLe X.—Bacteriolysis of the fifteen types of dysentery bacilli with rabbit sera immu- 
nized against ‘‘Tokyo I’ (“Y” type, Hiss,) “Rio-yang I,’ and ‘‘ Yamaguchi” 
(‘‘Harris’’ type). 
Anti-dysen- Anti-dysenteric Anti-dysenteric 
teric serum,‘‘Tokyo | serum, ‘‘Rio-yang| serum, ‘‘Yama- 
I’ (acid). I” (acid). guchi” (acid). 
a fps i = nase 
ape) oman topes | |_| (Emo ae uot ie. igs 
peer tpi ton, | Els )a| tina (s/o ]2] time Jefe a) stot 
itnce! a = |! e| tion. 2) S/S] tion. |T/4|S| nation. 
Bacteriolysis riolysis. riolysis 
A | Shiga -___.____ * |---| —(1-20) |—|--]--]| 1-40 |—}__|__|—(1-20) 
B | Port Arthur___ }—|--|--|--| 1-20 |—|—| -- fee¢a-o0) Hoe]. Is. 1-71-20) 
C | Yalu_____.____ Wf fe aay 11 0p et fc c-20) 
D | Biopengea yeh ae) 176 |— |__| ct ee ee ee 140 
E | Koreal______- So ae lt (1990) — eel 1a | eee a 
F | Wakayama I__ a eles | aoe eacnt! stad ose cry eet sah) 
G | Tokyo I_____.- -- |--|+]--| 1-500 |--]-+]--] 1-100 |-./+]--] 1-100 
H | Korea II______ ve Vem pee 1600) |e phe TBOO* fed fended, 000 
I | Rio-yang I ____ Oe eee pGhe| asl |. I19n. | aah gan 
J | Baltic IT ______ eee ee eet to0) leben) cot 40"! 2) ee Aan 
K | Tokyo II__.__||Acid_______ waft la-|=| 1-40 |e. [22] +] 4-800 |-<|—l__| 1-100 
L | Yamaguchi ___ oe) == I= 1000) | 22) )25) 1-200) | 4) 2-45 11: 000 
M | TokyoIV._-_- Se ees ee ISO tet toe tee TGQ to Pee) bee 
N_ | Korea III -.___ oo tee l oe le | ot-7b0" |=. 4-1, $000 te dle eedeeiog 
“0. | Kyote._-_. ae eiclale |--|--|--| 1-600 |--|--/ +] 1-800 
On the examination of the above table, we see that, under the condi- 
tions stated, no cross bacteriolysis is obtained between both types. But 
this is only the case when they are treated with anti-dysenteric serum 
from “G” type (“ Y,” Hiss), “I” type, and “L” type (“Harris” type) of 
dysentery bacilli. If we observe the bacteriolysis with anti-dysenteric 
serum from bacilli of the other types, we can see that the cross bacteri- 
olysis between both is produced. 
