C—3

22

"The amount of amalgam, bullion, value, and percentage of saving are shown separately in the following tabulated statement: — Amalgam. Bullion. Value. Percentage Oz. dwt. Oz. dwt. £ s. d. of Saving. "Plates ... ... ... ... 107 10 41 0 106 18 10 14-8 Berdans ... ... ... 112 0 42 13 111 4 10 153 Pans ... ... ... ... 27 14 10 11 27 10 6 3-8 Headings ... ... ... 18 10 7 0 18 5 2 2-4 Specimens ... ... ... 11l 3 42 6 110 6 7 15-2 Totals ... ... 376 17 143 10 £374 5 11 51-5 " The actual results of the treatment of the general quartz by the methods adopted in the ordinary stamper-battery can only be arrived at by deducting the value of the specimen stone which was subjected to special treatment. The actual returns from the general quartz, excluding the value obtained from the specimens, are as follows : — " Value of Ore.—4oo tons at £1 10s. 9d. = £615. Percentage £ s. d. of Saving. "Plates ... ... ... ... ... ... 106 18 10 17-3 Berdans ... ... ... ... ... ... 11l 4 10 18-1 Pans ... ... ... ... ... ... 27 10 6 4-5 Headings ... ... ... ... ... ... 18 5 2 3-0 Totals ... . . ... ... £263 19 4 42-9 Summary of Results. Peroentage Description. of Savings. "Surface-dirt ... ... ... ... ... ... ... 206 General quartz and picked stone ... ... ... ... ... 51-5 General quartz, excluding picked stone ... ... ... ... 429 " Second Test, Moanataiari General Quartz. —For this test 230 tons of general quartz and a quantity of specimen stone were treated, and yielded 3550z. 7dwt. of amalgam, which returned when retorted 117oz. Bdwt. of melted bullion, valued at £308 13s. 4d., or £2 12s. 7d. per ounce. The ratio of bullion to amalgam was 1 to 3-03. "• Total Approximate Value of Ore. —The assay-value of the ore per ton was as follows : —■ Oz. dwt. gr. "Bullion ... ... ... ... ... ... ... 0 12 6 Gold ... ... ... ... ... ... ... 0 6 18 Silver ... ... ... ... ... ... ... 0 5 12 Value, £1 7s. 9d. £ s. d. " 230 tons at £1 7s. 9d. ... ... ... ... ...319 2 6 Approximate value of specimens ... ... ... ... 145 10 6 Approximate original value of ore ... ... £464 13 0 "Results of Treatment and Percentage of Saving. Amalgam. Bullion. Value. Percentage Oz. dwt. Oz. dwt. gr. £ s. d. of Saving. "Tables ... ... ... 101 0 33 7 0 87 13 9 189 Headings... ... ... 16 0 5 6 0 13 18 8 3-0 Berdans ... ... ... 55 15 18 8 0 48 7 6 10-4 Pans ... ... ... 15 2 5 0 0 13 2 11 2-8 Specimens ... ... 167 10 55 7 0 145 10 6 31-3 Totals ... 355 7 117 8 0 £308 13 4 66-4 "Percentage of Saving, excluding Picked Stone. —Value of ore: 230 tons at £1 7s. 9d. = £319 2s. 6d. Value. Percentage £ s. d. of Saving. "Tables ... ... ... ... ... ... 87 13 9 275 Headings ... ... ... ... ... 13 18 8 4-4 Berdans... ... ... ... ... ... 48 7 6 15-1 Pans 13 2 11 4-1 Totals £163 2 10 51-1 " Second Test, Moanataiari Surface-dirt. —This test extended from the 17th to the 28th April. 400 tons were treated, and yielded 350z. Bdwt. of melted bullion, valued at £2 12s. per ounce, giving