To tie the president's hands Congress had passed the Tenure of Office Act, forbidding the president to remove any cabinet officer without the consent of the Senate; but in August 1867 President Johnson suspended Secretary Stanton and appointed Grant secretary of war ad interim until the pleasure of the Senate should be ascertained.
Council has ad interim administrative authority until the next ensuing annual convocation.
His eldest SOH, Heinrich August Hahn (1821-1861), after studying theology at Breslau and Berlin, became successively Privatdozent at Breslau (1845), professor ad interim (1846) at Konigsberg on the death of Heinrich Havernick, professor extraordinarius (1851) and professor ordinarius (1860) at Greif swald.
In spite of his already onerous duties, Dallas, with characteristic energy, served also as secretary of war ad interim from March to August 1815, and in this capacity successfully reorganized the army on a peace footing.
