STREPTOCOCCI IN WATER 295 
types were characterized by a low acidity in glucose, lactose and man- 
nite and a higher acidity in raffinose. The following tables are quoted 
from Houston’s work: 
TABLE XXVI 
PERCENTAGE OF STREPTOCOCCI FERMENTING THE SUGARS 
STATED 
F. A.=Fuller and Armstrong. W.= Winslow 
CL  tineatie denne nent ah estat Ai etree mneeanmnmeminiadibnadimiimin anmmmenmemamndianasinie sanmrnanaienrcemaadiiamameene ae_amsameemmaene ener menage TT EERO SN SENSO TEE aE 
Human Feces Horse Feces Cow Feces 
FA Ww FA Ww FA Ww 
Glucose ..... 0 .....ee, 95 89 75 65 81 84 
LactOs@ .....cceeeeees 94 62 24. 8 V7 * §2 
Saccharose .........6--. 90 Lees 46 Leos 75 
Mannite............006. 65 28 2 2 3 6 
Raffinose.... 2... cee eee 0 6 12 4. 73 28 
TABLE X XVII 
PERCENTATE NUMBER OF STREPTOCOCCI FERMENTING SUGARS 
MENTIONED 
Houston’s Data. 672 Specimens 
Human Feces (400 Specimens). | 
Series IV 
In th Milk, Cow 
Series I Average sens only Sp 172 n00" 
_ | Series | Series | of Series CCLMERS (4 . 
100 Specie | “TI Il | I, ILand| SPecimens peamens 
accepted 
100 speci- 
mens 
Glucose ..... Not tested 
Lactose...... 66 78 85 76 34 100 97 85 
Saccharose.... 89 84 86 86 34 49 90 89 
Mannite....... 7 27 39 24 34 4 20 None 
Raffinose...... 62 8 26 32 00 100 19 74. 
Salicm ....... 96 91 91 29 67 97 60 93 
Inulin......... 12 None 2 4 67 |Nottested; 21 13 
It is well known that streptococci are present in the intestinal tract 
of man and animals. They are essentially parasitic in their charac- 
teristics and, generally speaking, indicate recent pollution when found 
