asked the Minister of Fuel and Power whether he has considered the statement that tractors using vapourising oil save petrol, a copy of which has been sent to him; and if he will issue figures to show to what extent dollar oil supplies are conserved by the use of vapourising oil instead of petrol for farm tractors.

It is, of course, true that tractors using vapourising oil save petrol. Since, however, additional supplies of vapourising oil would have to be paid for in dollars, no less than additional supplies of petrol, the substitution of vapourising oil for petrol would not save dollars. The second part of the Question does not, therefore, arise.