Section, acts Feb. 14, 1903, ch. 552, § 2, 32 Stat. 826; Mar. 4, 1913, ch. 141, § 1, 37 Stat. 736; Mar. 3, 1917, ch. 163, § 1, 39 Stat. 1111, provided for appointment by President of an Assistant Secretary of Commerce, who would perform such duties as prescribed by Secretary or required by law.