Duchess of ATHOLL
My right hon. Friend understands that the National1458W Physical Laboratory do not conduct tests of coal slack. Experiment have shown that it is possible to produce oil from British coals comparable in efficiency with imported oil, but no Pronouncement can be made as to the Possibility of doing this under commercial conditions. My hon. Friend can find further information on this question in general in recent reports of the Department of Scientific and Industrial Research, notably Fuel Research Technical paper No. 17, and the annual Report of the Fuel Research Board for 1925.