asked the President of the Board of Trade how many completed advance factories in Scotland are currently awaiting tenants; what is the length of time that each has been standing idle since completion; and what in each instance is the aggregate cost to date to public funds.

Fifteen, as at 31st October. On average, these factories have been completed for nine months. They cost about £1·5 million in all, but I cannot disclose the cost of individual factories.

asked the Prime Minister what was the total expenditure by all Government Departments in connection with the Vietnam demonstration on 27th October.

I have been asked to reply.I regret that this information could only be made available at a disproportionate expenditure of time and money.