The City Treasurer shall not be required to call upon persons named in the city tax roll, nor to make personal demand for the payment of taxes, but he shall give notice to the taxpayers of the city, by publication in a newspaper of general circulation in the city at least once, which publication of notice shall be made at least ten days prior to the first day of July in each year, of the time when said taxes will be due for collection, and shall give such notice of the time when said taxes will be due for collection by first-class mail addressed to the owners of the property upon which taxes are assessed according to the names of such owners and their addresses as indicated on the tax roll, which notice shall be deemed sufficient for the payment of all taxes on said tax roll. Failure on the part of the City Treasurer to give said notice shall not invalidate the taxes on said roll nor release the person or property assessed from any penalty or interest provided in this article in case of nonpayment of the same.