Lands may be withdrawn from sale and such withdrawal may be revoked.

8. The Superintendent of the Province of Wellington may at any time by Proclamation published in the Gazette of such Province and also in some newspaper having general circulation in the said Province, withdraw from sale any Waste Lands of the Crown which it may appear expedient for public interests should be so withdrawn, and any Proclamation heretofore or hereafter to be made by such Superintendent, withdrawing lands from sale, may at any time be by the Superintendent revoked, by a Proclamation published in the said Gazette and newspaper, and such lands shall not until after the expiration of thirty days from the publication of the Proclamation of such revocation, be open for sale or selection.