Sections 235(8-b) and 380-i of the Banking Law permit savings banks and savings and loan associations, respectively, to operate personal loan departments. Other long-standing provisions of the Banking Law empower savings banks and savings and loan associations to invest in certain secured and unsecured personal loans. The authority to operate a personal loan department pursuant to sections 235(8-b) and 380-i is an additional authority and, except as specifically provided herein, shall not be deemed to limit the investment authority of a savings bank or savings and loan association which is provided under any other provision of the law.