It shall be the duty of the assessor and collector of taxes of the city, in making sales of real estate for delinquent taxes thereon, to make such sale at the courthouse door of Gregg County, Texas, and as far as practicable, all the lands and city lots levied upon for taxes shall be advertised in one notice and be sold on the same day; and such sales may be continued from day to day until concluded, but at the close of each day the assessor and collector of taxes shall make proclamation of such continuance on the following day. No sale shall be considered complete until the payment of the purchase money and if the same is not paid before the completion of the tax sales, the assessor and collector shall resell the property and continue such sale until the same is complete.
(Code 1943, Art. 54-8)