HC Deb 21 September 1931 vol 256 c1287W
Mr. FREEMAN

asked the Secretary for Mines the total number of animals employed underground in all the mines of the coal-producing countries, excepting Britain, for each of the last 10 years?

Mr. FOOT

I regret that this information is not available except in the case of Prussia during the years 1926 to 1929, when the number of horses employed below ground was 2,560, 2,512, 2,218 and 2,353 respectively.