Table III.

Results of the Bacteriological Examination of the Kowloon Water Supplies for the year 1921.

Coliform Organisms.

Sain ple, Date, Rate of Filtra-tion. Total Colonies on Agar in lee at 37° C. 20 c.c. 10 c.c 5 c.c. 1 c.c. O'lc.c. Enteritidis sporo enes. Streptococci. Presence of the Coli group. Unfiltered, 3-1-21. Bottle broken in transit. Filtered, ... 3-1-21. 12 Group II only present in 5 c.c. Unfiltered, 1-2-21. 57 Group III present in 60 c.c. Filtered, 1-2-21. 53 Absent from 60 c.c, Unfiltered, 7-3-21. 33 Filtered, ... 7-3-21, 15 Unfiltered, 4-4-21. 132 Filtered, 1-4-21, 9 Unfiltered, 2-5-21. 290 Filtered, 2-5-21. 22 Unfiltered, 6-6-21. 151 Filtered, 6-6-21. 11 Unfiltered, 4-7-21. uncountable. Filtered, 4-7-21. 18 Unfiltered, 8-8-21. 880 Filtered, 8-8-21. 14 Unfiltered, 5-9-21. 730 Filtered, 5-9-21. 15 Unfiltered, 3-10-21. 57 Filtered, 3-10-21. 12 Unfiltered, 7-11-21. 97 Filtered. 7-11-21. 22 Unfiltered, 5-12-21. 900 Filtered, 5-12-21. 85 1 + 1 + + + + + !+ !+ ! || ++ [ + ] + [+1 +1 + + !+ !+ ! +11+ Group I. 1 M (1) 28 Group IV. Group IV. | Group III. Group III.

All samples were taken either immediately before or immediately after filtration. The rate of filtration is given by the Water Authority in gallons per square yard per day. Classification of the Coli group is that of MacConkey, + - Acid and Gas. 1. = Acid only, No Change.

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