HC Deb 29 April 1931 vol 251 c1635W
Mr. DAY

asked the First Lord of the Admiralty the number of ships in His Majesty's Navy that have now been fitted with sound-film apparatus, and whether these machines are of British or foreign manufacture?

Mr. ALEXANDER

I have no further information on this subject beyond that furnished in my previous replies. I understand that the investigations into the subject are not yet completed.