Chapter XV: Section 5: And be it further enacted, That the Board shall determine,

after consultation with the President, courts, or heads of departments, as the case may be, upon the subjects of examination, and also whether the examination shall be oral, written, or both, and shall have full discretion as to the regulation of the examinations, and may employ such learned and honorable men as they may see fit to assist in the examinations, or to superintend examinations in their absence, and shall report their doings annually to Congress.