K. ZETKIN 1
Radek's pamphlet "Towards a Natural History of a Renegade" does not exist. He only sent the addition "Levi's Fall" to his first pamphlet 2.
Lenin
1 K. Zetkin's note is written in German. It is V. I. Lenin's response to Zetkin's inquiry about his opinion on K. Radek's pamphlet "Zur Naturgeschichte eines Renegaten" and the possibility of its publication, with an outline of his view on Radek's pamphlet. The note was sent through the Deputy People's Commissar of Foreign Affairs, L. M. Karakhan, on May 27, 1921, to the Deputy Trade Representative of the RSFSR in Germany, IO. Kh. Lutovinov.
Clara Zetkin was a prominent figure in the German and international labor and communist movement. During the years of the World Imperialist War, she stood on the positions of revolutionary internationalism, opposed social-chauvinism. One of the founders of the Communist Party of Germany. At the III Congress of the Communist International, she was elected to the Executive Committee of the Comintern. She headed its International Women's Secretariat. From 1924, she was the permanent chairman of the Executive Committee of the International Organization for Aid to Revolution Fighters (MOPR).
2 Apparently, this refers to K. Radek's article "The III World Congress on the March Action and Further Tactics." For more details, see V. I. Lenin. Complete Works, vol. 44, pp. 91–95.