§ MR. HENNIKER HEATON (Canterbury)To ask the President of the Board of Trade whether he has any official information showing that the tests for colour blindness, adopted by the Board of Trade, are efficient.
§ (Answered by Mr. Lloyd-George.) I can only say that the colour tests for the mercantile marine were adopted on the advice of a Committee of the Royal Society of the highest eminence, and that the Board of Trade have no reason to doubt their efficiency.