Presumptive Test for Bacillus Coli 



TABLE 4.— Continued. 



297 



Smith Solution 



0.1 c.c. 



Rahway River, N. J., just be- 

 low sewer outlet — 



Total gas 



After absorption 



Per cent carbonic acid 



Test for B. Coli 



Bodine Creek, S. I., badly 

 contaminated — 



Total gas 



After absorption 



Per cent carbonic acid 



Test for B. Coli 



Kill von KuU, badly contami- 

 nated — 



Total gas 



After absorption 



Per cent carbonic acid 



Test for B. Coli 



Hudson River at mouth, badly 

 contaminated — 



Total gas 



After absorption 



Per cent carbonic acid 



Test for B. Coli 



Hudson River at Hoboken, 

 badly contaminated — 



TotaJ gas 



After absorption 



Per cent carbonic acid 



Test for B. Coli 



East River near B'klyn Bridge. 

 badlv contaminated — 



Total gas 



After absorption. . . ._ 



Per cent carbonic acid 



Test for B. Coli 



East River below Blackwell's 

 Island, contaminated — 



Total gas 



Alter absorption. 



Per cent carbonic acid 



Test for B- Coli 



Harlem River near mouth, con- 

 taminated — 



Total gas 



After absorption 



Per cent carbonic acid 



Test for B. Coli 



Bronx River, contaminated — 



Total gas 



After absorption . . . ._ 



Per cent carbonic acid 



Test for B. Coli 



Gowanus Canal, at head, badly 



contaminated — 



Total gas 



After absorption 



Per cent carbonic acid .... 



Test for B. Coli 



Gowanus Canal at Hamilton Av- 

 enue bridge, badly contarai 



nated — 



Total gas 



After absorption . . . ._ 



Per cent carbonic acid 



Test for B. Coli 



Sewage effluent after rough fil- 

 tration, Bedford, N. Y. — 



Total gas 



After absorption 



Per Cent carbonic acid 



Test for B. Coli 



17 



15 



25 

 17 

 3a 



33 

 23 

 30 



J5 



I c.c. 



13 



37 

 25 

 37 



-t- 



41 



30 

 26 



-I- 



19 



o 



23 



13 



J7 



10 C.c. 



36 

 25 

 27 



13 



13 



40 



27 



33 



23 



17 



18 



