§ Mr. MAINWARINGasked the Secretary for Mines whether he can supply a list of the undertakings separately operating in the coal-mining industry within the Rhondda East and West constituencies during the year 1920, giving the number of men employed above and below ground at each pit; will he also indicate what pits continued to be in active operation up to and during the year 1934 and the latest available date in 1935, again giving the number of men employed on these dates?