Sessional_Paper_1911 — Page 220

150

No. I FILTER BED. FIRST SERIES.

Made up January 18th, 1911. Sand 2' deep.

Rate of Filtration 375 to 400 yards gallons per day.

Amounts of samples tested were:-

face, Tec, lcc Agar plates.

cc, lec, 2cc Lactose Agar coloured plates.

lec, 2cc, 5cc Glucose Bile Salt N. R. Peptone water.

lec, 2cc, 5cc, 10cc, 20cc, 50cc Lactose N. R. Peptone water.

Organisms isolated worked out fully as described on p. 119.

Results given both by "Group basis" and by organisms isolated.

For total unfiltered water taken on same day, see previous pages.