§ 27. Mr. R. J. Taylorasked the Secretary for Mines the amount of coal cut
| Quantity of coal cut by machinery at Mines under the Coal Mines Act, 1911, in Great Britain during the years, 1928–1937. | |||||||
| Coal cut by machines driven by | |||||||
| Year. | Total. | ||||||
| Electricity. | Compressed Air. | ||||||
| Tons. | Tons. | Tons. | |||||
| 1928 | … | … | … | … | 40,548,915 | 20,839,217 | 61,388,132 |
| 1929 | … | … | … | … | 47,555,329 | 24,394,182 | 71,949,511 |
| 1930 | … | … | … | … | 50,804,009 | 24,951,586 | 75,755,595 |
| 1931 | … | … | … | … | 52,350,151 | 24,513,886 | 76,864,037 |
| 1932 | … | … | … | … | 55,698,661 | 24,586,990 | 80,285,651 |
| 1933 | … | … | … | … | 62,107,260 | 25,718,846 | 87,826,106 |
| 1934 | 73,893,867 | 29,807,055 | 103,700,922 | ||||
| 1935 | 80,415,003 | 32,849,600 | 113,264,603 | ||||
| 1936 | 89,750,327 | 35,820,027 | 125,570,354 | ||||
| 1937 | 96,959,875 | 40,158,591 | 137,118,466 |