23

H.—l6

RETURN No. 1. STATISTICS of WORKINGS in COAL MINES.

CO 5 1—( I s, S ft d O 73 1 a l "o 8 1 a •a Q 1 P <! % J o | a S n CD .5 1 C OS a s m g a S 00 i n >4- CO o a a 5 a 5 Dimension of Pillars. Power used for drawing Coal. 0 o 2 m Size of Pipes. a § ■q O o I 9 ffl Ventilated by. Date of Inspector's Visit. Tons. 40,000 50 under 50 over 9 under 12 over 1 24 under 5 3 under 7 over Tons. 34 Feet. 7x6 Feet. 7x6 12 to 18 10 x 6 yds. to 10x10 yds. 8 to 10 yds. square 12 yds. 16 ft. 14 ft. Engine Ft. G Feet. 12" 9* 6" 150 Steamjet Natural 31st March, 1879 1,000 5 6x7 9x6 12 to 14 x 12 Hand 27th „ 1,690 11,137 3,073 2,000 4 3 too 4 34 6x5 8x 6 8 x 11 7x10 8x 6 8 xll 9 ft. 14 ft. 14 x 11 Horse Hand do Engine ii 6* 70 do. do. do. do. 28th „ 7th April, 1879 8th „ 9th & 18th April,, 4 14 yds. do. 3rd October, 1878 50 1 650 9 under 11 over 6 2i 8x6 Engine 10 H.P. 4 8' 53 None. 15th „ 1,190 3 5 x 10 9 9 ft. 8 yds. Hand Natural 27th May, 1879 1,468 19,404 3 39 under 8 over 20 under 4 over 2* 5 6x6 10 x 10 6x6 18 to 20 ft. 60 x 66 ft. 18 yds. Horse Hand, & selfacting inclines Engine do. do. 21st October, 1878 14th February, 1879 7,742 4 12 x 10 12 x 10 18 to 20 ft. 10 to 14 yds. x 20 yds. 4 10' 250 do. 15th 6,882 2 over i-J 9x16 9x 6 18 ft. 17 x 22 yds. Engine 48 H.P. 10" 670 15 ft. fan 17th „ 3,001 3,129 830 2,016 (28 under I 9 over { 5 borers 12 1 7 under 2 over la* r li l 8 x 44 6x4 6x6 Ox 4J 6 wide 5x4 5x6 8x3 to 4J 4 yds. 6x4 8 yds. square various 8yds. 8 yds. Engine 10 H.P. Hand Engine 8 H.P. 10" 3" Furnace Natural do. None. 16th January „ 17th „ 16th „ 17th „ 8 x 3to 4£ 12* 5" 91 1 4Jx 5J 11 to 12 8 ft. square Hand Natural 28th „ „ 400 2 2,400 5 under 2 over 15 under 35 over 12 8 14 ■^i 6x6 6x6 15 to 18 ft. 6 ft. square do. do. »t ,, ,, 5,377 3 7x6 7x6 14 20 yds. Engine 6 H.P. 10" 5" 25 ?urnace 27th „ 132 4,*660 7x 8 5x 7 61 7 6x6 5x6 6x6 14 x 7 12 x 7 14 x 7 30x30 13 ft. square 6x — Hand Engine buc Horse lets under ca ge do. do. Natural 20th „ 21st " " 3,600 5,874 17,106 1,333 1,250 6 17 14 3 2 3 H H 10 x 7 9x7 7x12 12 x 6 8x8-15x8 6x6 6x7 6x 7 7 x 14 14 x 7 14 x 7 12 16 x 8 3 yds. x 15yds. 14x6J 14 ft. 12 ft. irregular do. Engine 15 H.P. Engine 10 H.P. Hand do. 8' 44 r ii' 130 175 Furnace Natural Furnace Natural do. 22nd „ 20th „ 21st & 22nd Jan.,, 24th January „ n u M 924 17 9x8 9x8 14 x 8 18 ft. square Engine 16 H.P. 8" 8" 392 Furnace 14,000 31 3 10 x 7 10 x 7 16 x 7 7 yds. square Horse do. 162,218