asked the Minister of Aviation what further studies have been made of the danger involved in the use of J.P.4, a mixture of 60 per cent. petrol and 40 per cent. kerosene, as fuel for jet and turbine-engined aircraft, instead of kerosene; and what conclusions he has reached.

The Working Party I set up to compare the safety aspects of aviation kerosene and wide-cut gasoline or J.P.4 has now completed its studies. Its Report will be published, and available next month. I will then make a statement.