§ SIR ROPER LETHBRIDGE) (Kensington, N.I beg to defer until Tuesday the question in my name, to ask the Secretary to the Admiralty who is the officer responsible for the selection of the compositions that are ordered from time to time to be used on the bottoms of Her Majesty's ships; is this officer an expert, and what previous technical experience and education has ho had to qualify him for this important duty; and by whom was he appointed, for how long, and has the appointment been sanctioned by the Treasury?