C—2

40

SECTION IV.—WORKING OF THE COAL-MINES ACT. (a) Permitted Explosives. (Regulations 233 to 237 inclusive.) The following is a table showing the quantity of permitted explosives used and the number of shots fired at New Zealand coal-mines during 1929 : —

Seventy-eight per cent, of the coal produced in the Dominion during 1929 was broken down by permitted explosive, and the average production of coal per pound of explosive used was 3-57 tons, and per shot fired 2'Bo tons. (b) List of Mines required by Law to use Permitted Explosives. The following is a list of mines as at the 31st December, 1929, required by law to use permitted explosives :— Northern Inspection District. Pukemiro Collieries, Pukemiro—Throughout South Mine. Rotowaro Colliery, Rotowaro —Throughout No. 1 and No. 3 Mines. Glen Afton Colliery, Glen Afton —All sections of the mine, with the exception of A section. Waikato Extended Colliery, Huntly—All sections. Renown Colliery, Rotowaro —All sections. West Coast Inspection District. North Cape Mine, Puponga. Armstrong's, Dunollie. Puponga, Puponga. Baddeley's, Runanga. O'Rourke's, Murchison. Bellvue, Runanga. Bennett and party's, Seddonville. Blackball Coal Co.'s, Blackball. Cardiff Bridge, Seddonville. Brae Head, Dunollie. Westport-Stateville, Seddonville. Cain's, Rapahoe. Chester's, Seddonville. Castle Point, Runanga. Clydevale, Seddonville. Cox's Creek, Runanga. Coal Creek, Seddonville. Dobson, Brunnerton. Glasgow, Seddonville. Duggan's, Rewanui. Quinn and party's, Seddonville. Hunter's, Dunollie. Westportmain, Granity. Briandale, Ten-mile. Westport-Mokihinui, Seddonville. Moody Creek, Dunollie. Westport Coal Co.'s Denniston mines. Old Runanga Co-operative party, Rewanui. Westport Coal Co.'s Millerton mines. Schultz Creek, Runanga. Westport-Stockton Ngakawau. Scott and Kerry's, Twelve-mile. Wynn's, Seddonville. Smith's, Runanga. Rocklands, Berlin's. Spark's, Rewanui. Whitecliffs, Berlin's. State Coal-mines (Liverpool Collieries and James Archer's, Capleston. Colliery). Clele, Merrijigs. Paparoa, Roa. Coghlan's, Capleston. Wallsend, Brunnerton. Collins, Murray Creek. Allan's, Brunnerton. Morrisvale, Reefton (Perfection Valley, Dennehy's, Barrytown Road. Matchless, and Surprise). New Point Elizabeth, Dunollie. Reefton Coal Co.'s, Reefton. Goldlight, Dunollie. Waitahu Colliery, Reefton. Fiery Cross, Dunollie. Lankey's Creek, Crushington. Jubilee, Rapahoe. White Rose, Merrijigs. Bellbird, Ten-mile Road,

Quantity of Permitted Nnmher nf MUflrp.1 Sh<its Explosives used (lb.). W umber ot Misflrcd Sh0ts - s % 5 o rt 3 — —— , O © © <u Co Number > > . > «£ Inspection District. _• of £ o> S 8 £ "g — | , | Shots fired. J.| jf S, |J | | | 5f 51 51 f <n .Sf I >. w 5" ■4 ►-! « M M « < Tons. Northern (i.e., North Island) .. 119,091 .. .. 130,959 10 85 15 110 452,857 West Coast (of South Island) .. 183,029 .. 171,701 441,895 28 650 301 1,081* 1,266,810 Southern (i.e., Canterbury, Otago, 7,737 .. 73,366| 135,345 .. 109 16 128f 263,395 and Southland) Totals .. .. 309,857 .. 708,199 38 844 332 1,319 1,983,062 * Includes 102 " cause unknown." t Includes 3 " cause unknown."