The Board of Governors of the Federal Reserve System shall, at least once each year, order an examination of each Federal reserve bank, and upon joint application of ten member banks the Board of Governors of the Federal Reserve System shall order a special examination and report of the condition of any Federal reserve bank.
(R.S. § 5240 (par.); Feb. 19, 1875, ch. 89, 18 Stat. 329; Dec. 23, 1913, ch. 6, § 21, 38 Stat. 272; Aug. 23, 1935, ch. 614, title II, § 203(a), 49 Stat. 704.)