former employer, David Riazanov. With his name under a cloud of suspicion and with a show trial of the purported "Union Bureau of Mensheviks" in the offing, Riazanov was dismissed as director of the Marx-Engels Institute in February 1931. Soon after the completion of the March trial of the Union Bureau — the so-called 1931 Menshevik Trial — with his name besmirched by false testimony, Riazanov was expelled from the Communist Party and arrested by the secret police, ostensibly "for helping Menshevik counter-revolutionary activity." Following his arrest Riazanov was not sent to the labor camps of the Gulag, but was instead subjected to administrative deportation to the city of Saratov. In Saratov, Riazanov worked for the next six years in a university library. Riazanov's Marx-Engels Institute was consolidated with the Lenin Institute later in 1931 to form the Marx-Engels-Lenin Institute, under the direction of V.V. Adoratsky. During the Ezhovshchina of 1937, Riazanov was again arrested, this time as a purported member of a "right-opportunist Trotskyist organisation." On 21 January 1938, following a perfunctory trial, the Military Collegium of the USSR Supreme Court condemned Riazanov to death and he was executed later that same day. Riazanov was posthumously rehabilitated in 1958. He was further rehabilitated in political terms in 1989 as part of the glasnost campaign of Mikhail Gorbachev. According to historian Colum Leckey, David Riazanov's chief achievement lay in the realm of Marxology — acquiring, preparing, and publishing for the first time previously unknown writings of Karl Marx and Frederick Engels. Included among these were the works The German Ideology, sections of The Economic and Philosophical Manuscripts of 1844, The Critique of Hegel's Philosophy of Right and Dialectics of Nature. Works Anglo-russkia otnosheniia v otsenke K. Marksa: Istoriko-kriticheskii etiud. (Ango-Russian Relations in the Estimation of K. Marx: A Historico-Critical Study.) Petrograd: Izdanie Petrogradskago Soveta rabochikh i krasnoarmeiskikh deputatov, 1918. G.V. Plekhanov i gruppa "Osvobozhdenie truda". (G.V. Plekhanov and the "Emancipation of Labor" Group.) Moscow: Otdel pechati Moskovskogo Soveta rabochikh i krasnoarmeiskikh deputatov, 1919. Международный пролетариат и война. Сборник статей 1914-1916 г. (The International Proletariat and the War: Collection of Articles, 1914-1916.) Institut K. Marksa i F. Engelʹsa pri V.Ts.I.K. (The Institute of K. Marx and F. Engels of the All-Russian Central Executive Committee.) Moscow: Moskovskii Rabochii, 1923. Zadachi profsoiuzov do i v epokhu diktatury proletariata. (The Tasks of the Unions preceding and during the Epoch of the Dictatorship of the