128 
Analyses characteristic of certain natural conditions in water—contd. 
























‘ | a 
(3) SAMPLE IV.—Boostkar | & Bueer: 
CHANNEL— = ay Oe 
a| | | {el Racill 
ie 3 bg || ot #aciilus. 
(a) Total colonies on BEB hee =| al/dia| & 
° O Ellas] 3 
agar at 37°—170 [ ae hors Seals) «© 
4-18 BASSE 8] 3 
(6) Bile. salt lactose, Goi tole WBS inci Ma | _* 
medium— a | ea as: 
1 tube 20 cc. of , | z+, I /-|+/-j-/-|-| 1 | B. Coli communis. 
water taken. | | 
2 tubes 1occ. of | 5! 2 |—|—l-1+1-/>] I B. Grunthal. 
water taken. | 
4tubes 5cc. of [4|..J 3 |-|/+/-|-|~|~| UW | 8B. Coli communis: 
water taken. ea 
5 tubes cc. of | 5| 4 /+/+/-|-|-|+| ITI | B. Neapolitanus. 
water taken. aay: 
5 tubes. *1 ce. OF |) + 5S Sa I | B. Grunthal. 
water taken. | Pt es 
5 tubes ‘orcc. of 6 |+)-|—|—|-|+] . FV |B. Coscoratar 
water taken. | | | 
Be hiss 6 lead be en igi Oe Do. 
(c) Fecal bacilli in tcc, and| 2 |7 age Cap et + I | B. Grunthal. 
upwards. Ya | 
(d) Sree sics Wille ese t -O yS a ard jae a II | B. Coli communis, 
in 20 cc. | | | etc. 
ee a eas eal | 1V | B. Coscoroba. 
(4)SampLe I.—Storace Reser-| 1 |+/+/-|—/+/-| III | No. 73. 
VOIR—UNFILTERED WATER— ea 
2 |+/+/+/-|+]-| III | No. 67.! 
(a) Total colonies on | , Seis F i=) SE ies. 
agar at 37°—630. {|+|— 
(b) Bile salt. lactose | 4 \+ —|=|=|+/=| 21V-| ByCloaca 
medium— —— | 
f tube 20-ce. of 1) 1)..) 5 (rial |p |) ee orgs 
water taken. | Vo | 
2 tubes 10cc. of 2 6 |-+F\+|+)/—|+|—| ° TIL | No. 67- 
water taken. | | 
4tubes 5cc. of [4[..k 7 |+)+/—|-|+{—| « TL | No. 73. 
water taken. ent | ae B: 
§ tubes’ 1 cc, ‘of |'5 8 |+/+/+/—|+|—| III | No. 67. 
water taken. | e 
§ tubes “1 cc. of }tl4ap 9 +) +) +/=|-+41-| tlie Do: 
water taken. | | 
§ tubes orcc.of |. .|5 | | 
water taken. 10 |+|—|—|—|+|-| -IV |B. Cloace. 
(c) Fecal bacilli in 1 cc. and 
upwards. 
(d) Sporogenes milk test—in 
20 CC. 


(3) A bad mixture in a surface channel. 
(4) Fairly good lake water—note, bacilli belong to more resistant end: of class 
If and class III. 

