adopted an oppositional stance towards the Government. For a number of years Posse remained unquestionably the most prominent and powerful personality in Parliament, even if not the most charismatic. During 1867–1881 Posse was a member of the Second Chamber, representing the district of Herrestad och Ljunit Hundreds, outside Ystad. In 1867-75 he was Chairman of the Committee on Government Affairs (at the Extra Parliament of 1871 he was the Vice Chairman of the Select Committee (Särskilda utskottet)). As Speaker 1876-1880 he was in charge of the business of the Second Chamber. He entered government on 19 April 1880, being appointed Prime Minister, following the resignation of Baron Louis De Geer. Additionally Posse was Minister of Finance from 7 December 1880 to 8 March 1881. Prime minister and administrative court president As prime minister, Posse now had to solve the important issues that had been on the agenda since the reform of Parliament. The issues concerned the proposed abolition of both the allotment system and the land taxes (grundskatter) as part of a re-organization of the military. The odds seemed to be in favor of success, since it was believed that he could count on support from old party friends, and among the opponents of the preceding governments. Large committees were appointed to report on the issues. At the Parliament of 1883 the Posse Government tabled their proposals. They promised a step-by-step removal of the land taxes, and the tenement and allotment duties. In return the Posse wanted Parliament to approve the Government's proposals to establish a military based partly on permanently drafted soldiers (enrolled voluntarily and paid by the state) and partly on conscription. However, the Upper House's insistence on retaining the allotment system, and, perhaps more importantly, the Lantmanna Party's cutbacks, led to a series of dramas and a defeat for Posse, following which he resigned as Prime Minister on 13 June 1883. He was then appointed President of the Administrative Court of Appeal, which he remained until 1889. Political and scientific work As member of the First Chamber for South Kalmar County 1882–1890, Posse kept a low profile, but opposed the introduction of grain tariffs during the 1887 struggle between free traders and protectionists. He also expressed his sympathies for a moderate suffrage reform. When speaking in Parliament, Posse expressed himself succinctly and clearly, often emphatically but always with calm and dignity. He was elected a member of