H.—3l.

The following table shows briefly the results in the case of the public supplies examined : —

70

Source of Water. Organisms per Cubic Centimeter. At Normal ., „_,, Temperature. ' Bacillus coli. Bacillus sporogenes. Wanganui,— Tap .. Ashburton, — Proposed supply No. 1 .. No. 2 .. 4,250 2,500 1,300 3,500 0 0 182 24 0 * Timaru, — Tap .. Race Taihape,— Temporary supply Proposed supply Auckland, — Tap .. Eden Terrace* — Tap .. Lyttelton, — Tap .. Main Eltham,— Intake Tap .. Palmerston North, — Intake Tap .. Cambridge, — Spring Tap .. Helensville (proposed supply) Weraroa Industrial Farm, — Collecting-tank .. ,, (after cleaning filter) Dunedin, — a. Leith Valley b. Caversham Westmere Lake (Wanganui) Wanganui (second visit), — Tap.. .. .. Waihi (after journey) Marton, — Tap .. Reservoir Feilding,— After filtration Unfiltered Stratford, — Tap .. Intake Manakau Trust, — Tap .. Mount Albert, — Pump-well Tap .. Martinborough, — Intake Masterton, — Tap .. Intake Whangarei, — Intake .. .. ... Tap .. L evin (proposed supply) 240 294 1,300 700 300 300 70 60 484 416 260 260 280 286 150 700 700 92 191 1,000 10 24 425 50 22 48 1 37 34 3 4 42 42 20 70 10 15 210 0 0 * 0 * * 0 0 0 0 0 0 0 0 0 0 0 0 0 * 0 0 0 0 0 0 0 0 0 420 800 12 60 0 0 0 140 120 14 20 0 * 0 180 359 15 30 0 0 0 231 585 17 150 * 0 24 8 0 0 80 100 2 15 * 0 250 90 * 60 153 5 30 * 0 0 190 210 235 70 15 0 0 0 0 0 The mark (*) indicates ihat the organis u was present.