asked the Minister of Power (1) how much has been invested since nationalisation and during the years 1957 to 1964 in coal mines which made losses in 1964 before charging interest and depreciation, excluding mines under reconstruction;(2) what amount had been invested since nationalisation in coal mines which have been closed during the last five years.

I understand from the National Coal Board that this information is not immediately available, but I am asking the Chairman to write to my hon. Friend.

asked the Minister of Power if he will give for each development district the number of coal mines which in 1964 made losses before charging interest, and depreciation, where the district contained any such mine.

I am asking the Chairman of the National Coal Board to write to my hon. Friend.