L—4

23

An estimate of the cost of the erection of suitable blast furnaces has been obtained from a reliable source, which shows that with a capital of £22,000 invested, 18.000 tons of pig iron could be produced annually, at a cost of less than £100,000 for working expenses. (See Part Papers 1873, E. 10, p. 25,)

I.—TABULAR STATEMENT OF IRON SANDS.

TABLE II. —MASSIVE IRON ORES, OXIDES, AND TITANITES.

No. 3. Mr. S. A. Leech to the Dieectobs, Albion Coal Mining Company. Gentlemen,— Harbour Office, Westport, 15th August, 1873. At the request of Albert Beetham, Esq., your managing director, I accompanied that gentleman to the Ngakawau River in the steamer " Result," to explain, on the spot, my views of straightening and improving the navigation of the river up to the mine, as the channel in its present state is difficult to navigate, except with small vessels like the " Result," notwithstanding a considerable expenditure on it by the original promoters and the Nelson Government,

No. Locality, and Matrix from which probably derived. ! ■R Cm O 51 Accessory Minerals. 1 2 3 4 Upper Buller River, Nelson—Hornblende rocks Lower Buller River—Tertiary gold drift of diorite slate... Upper Molyneux River, Otago—Mica schists Lower Molyneux River—Mica schist and tertiary strata... 8-7-5 540 827 74-4 9-4 423 97 2-5 70-2 59-0 659 58-7 Auriferous Auriferous Auriferous, and with 12 per cent, of glauconito 6 6 7 8 9 10 11 12 13 14 Mountain Stream, Canterbury —Palteozoic slates, &c. „ Otago „ Tuapeka, Otago —Old gold drift Wakatipu, Otago —Mica schist Mataura River (Upper)—Diorite slate „ on a spur close by —Old gold drift Stewart Island—Granitic rocks, with greenstone dykes ... ,, Hornblende rocks Anatoke, Nelson—Granite and hornblende Mahinepoa Lake (old channel of Hokitika) —River drift from diorite rocks Sea Beach, Hokitika—Sea sand drift Motueka River, Nelson —Tertiary strata and granite Wairau River, Marlborough — ,, „ schist Wanganui River, Nelson —Granite and tertiary ... Saddle Hill, Otago—Basaltic Green Island, Otago— ,, or sea beach... Hooper Inlet— „ ,, W. Bluff, Southland, Foveaux Straits —Diorite, or sea beaeh D'Urville Island, Nelson—Diabase and Granite ... Taranaki Beach—Trachyte ... 62-7 861 2-2 80-0 9-8 635 77-8 71-5 79-8 372 10-5 92-8 76 16*1 70-9 8-0 20-1 8'2 3-4 58-0 66-2 58-5 638 52'9 41-2 GO-6 57-3 70-1 GO-2 29-1 Auriferous Auriferous Auriferous 15 1G 17 18 19 20 21 22 750 330 21-0 54-0 583 533 20-0 122 20-0 7'7 54-0 42'0 389 43-2 52-9 50-3 53-0 28-6 Auriferous Auriferous Auriferous Auriferous, with garnets, topaz, disthene, &c. Auriferous Auriferous Auriferous Auriferous 3: 4! 11 1-8 i-4 ■0 256 29-6 ,-2 40-6 "'t Auriferous and PlatiniferOU9 23 84 23 2(3 78-6 919 71-0 87-4 6-2 80 57-4, 70-1 56-1 68-0 Chrome iron Olivino and hornblendo ,, ,, ... ... ... ... . •• Tauranga Beach— „ 8-6

Centeai: lal Com] toaition. No. Variety. Locality. Percentage of Iron. Remarks. Magnetite. Hematite. Titanic Iron. Siliceous matters. Water. 1269 426 (J) 420 (a) Impure magnetite ... Magnetite ... ... Hematite Magnetite Mixed magnetite and hematite Bog iron ore Brown iron ore Brown iron ore Manukau, Auckland Dunstan Gorge, Otago ... Dunstan, Otago ... Dun Mountain, Nelson ... Maramarua, Auckland ... 60-20 86-32 37-90 9611 9060 87-10 traces traces 1-90 1368 3-89 760 1066 ik 7006 63-60 6S30 63 40 62-30 1274 2-24 traces 22 1395 (S) 1199 Spring Swamps, Auckland Raglan Kawau 7317 72-69 67-98 13-83 9-68 19-65 1300 1763 12-37 51-22 50-88 47-58 1230 Hydrous hematite ... Parapara, Nelson G2-68 21-08 13-24 43-87 Manganese oxide, 1-38 Contains a littli manganese Black Bands ok Ipat: :c Iro: Or :s. No. Variety. Locality. Protoxide of Iron. Sesquioxide of Iron. Car- Qjj, j Perbonic . ' centage Acid. cates- of Iron. 1296(') Black band ... 1351 Black band ... ... Colling-wood, Nelson ... Collingwood, Nelaou 3523 40-38 25-77 21-12 393 526 21-97 16-G9 46-06 35-12