§ Mr. PALINGasked the Secretary for Mines if he can state what is the difference in the number of cases, in any given period, of miners' nystagmus at collieries where oil lamps are used and the number where electric lamps are used?
§ Lieut.-Colonel LANE-FOXVery little statistical information on the subject is available, and the hon. Member will be aware that in such a matter the number of factors is so great and these factors vary so much that a mere statistical comparison would be of little value. I will send him references to the relevant portions of the minutes of evidence of the
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— France. Italy. United States of America. Japan. British Empire. Battleships, Dreadnought type … 6 5 20 7 18 Battleships. Pre-Dreadnought … … 3 4 6 4 — Battle Cruisers … … … … — — — 7 4 Cruisers … … … … … 6 3 10 — 2 Light, Cruisers … … … … 5 10 10 15 48 Flotilla Leaders … … … … 1 8 — — 16 Destroyers … … … … 50 51 316 71 186 Submarines … … … … 47 43 99 43 65 Miners' Lamps Committee and of the First Report of the Miners' Nystagmus Committee.