yes eos 
Pee ee eee ee a ee ee 
ee ee Pe a Isr.) 
966 
A: type) 
ae eile 1S ili 
Taste VIII.—Bacteriolysis of ““Gaiping I’ (‘‘A’’ type) with serum from horse, “Shiga” 
“i ” 
Pa Fresh Plate 
0.002 milligram fresh agar culture “Shiga” bacillus | immune normal = 
in 1 cubic centimeter salt solution. serum, ee ae 
Bao sat serum. hours. 
A be SeOe Pe ep cee OP RE, gees a ee None. None Innumerable. 
Lg i | 5 a A a ne es S22 CT Cat None. Thousands, 
WU TO se race nounced None. 0.2¢. ec. | Innumerable. 
OG bate iee aot eienieae 0.1.6. 0.2 c. ¢. Do. 
icc ee ee ee ee ee on ee 0.05 ¢. ¢. 0.2 .C, 6. Do. 
PS Biche eb lens Sones nea ee ie eaeeky sece se kae eee 0.025¢e.c. | 0.2¢e.¢c. | Thousands. 
R 6g, Ses oc 7) aaa er eae, SES: ae Se ee ee ae 0,01 ¢. ¢. 0.2¢.c. | One thousand. 
OG) Bitedubeudoanedbasta 0.005 ce. ce. | 0.2¢.¢. | Hundreds. 
1 ora fe Wt SSE a PRE ere oeiereir eee 0.0025 ¢.c.| 0.2¢, ¢. Do. 
ye Py eae 0.001c.c. | 0.2¢.¢c. | One hundred. 
Le, .62.-22._-....-i-- _| 0.0005 ec. e.| 0.2¢.¢. | Almost none. 
ie ae Sel cc ahr peas ea seid penta at eres 0.00025¢.c.) 0.2¢c.c. | Few. 
Prieta koe Sea ee oo at deeweeehaee 0.0001 ec. ce. 0.2¢.¢c. | Hundreds. 
ere, TO DRO Sout deceeen base cco onc o si eS None 0.2¢c.c. | None. 
Contwol, no baciiiis2-cs2s-- SS --------- 1-2 icc None Do. 
Taste 1X.—Baceteriolysis of ‘‘Rio-yang I’? (‘“‘I"’ type) with serum from rabbit, 
“Tokyo 7” (“Gq type). 
aniaye | | Fresh —— 
0.002 milligram fresh agar culture ‘‘Rio-yang”’ enteric normal —— 
bacillus in 1 cubic centimeter salt solution. serum, horse rg 
comple- serum. hours. 
ment free. 
Dea ital £2 noo oy idk cok ncosen dinnaw dun coteemee None. None. Innumerable. 
ier Sas a inp me ok wae oo eek eed ated 0:16. ¢. None. Do. 
Ca OS SA GE OCS REESE ea on Saree ee ae nen Benen None. 0.2¢.¢. | Thousands. 
LP be aS oP a eae cee eee Re eels ae ne ee ee mew ees Te O16. 6. 0.2¢c.c. | One thousand. 
yh oSt Gh! ae ir eC ope Oe cea ee ROE Parra ee 0.05 ¢. ¢. 0.2¢.¢. | One hundred, 
DN ig toe oe SUL hak a Cncnenctnn iwmawnvanenndnanieus ee 0.025¢.c. | 0.2¢..c. | None, 
E22! gy US UREN bl AR a ee pe kee Se Le 0.01 ¢. e. 0.2¢.¢c. | One hundred, 
ON) 5° dt this AAR 8 3 LG MOO ST ae aa Fae ee Re Be Bree’ Xe 0.005 e.c. | 0.2¢.¢e. | One thousand. 
SE CE Oe OE ee AREER Oe ee ee) 0.0025 ec. c.) 0.2¢.¢. | Thousands. 
Leg, ot TESS eS ee ae ore ae 0.001 c.c. | 0.2¢. c. Do. 
1ac¢ MENS Sd Se ne 0.0005 c. c.) 0.2¢.¢. | Innumerable. 
GF ie een ae ee onc oe on nt ce 0.00025¢.¢.) 0.2 ¢. ¢. Do. 
SAE eater ts I a meee co eee Sea im eepey Pe 0.0001 ec. c.| 0.2 ¢, ¢. Do. 
ROT NN «os ak caece needa pn dane ceseee None. 0.2c.¢c. | None. 
Control, no bacilli__---- 0.1 6c. c. None. Do. 
The results obtained by the use of a fixed amount of homologous 
immune serum sufficient to bring about the destruction of a definite 
amount of culture of B. dysenteriae in the presence of a sufficiency of 
complement are shown by Tables VIII and IX. These are the only 
