Ivanov, head of the Laboratory of Experimental Genetics at the same institute. While in Obninsk, Timofeev-Resovskij wrote two books (published in 1968 and 1969 – see the book list below) and more than 60 papers on population genetics, radiation biology, and evolution. His wife Helena assisted him by providing her eyes to compensate for his lost vision, taking dictation, and editing his papers. In 1968, even though Lysenkoism was officially over, its supporters were able to block Timofeev-Resovskij's nomination to the Soviet Academy of Sciences. In 1969, they used their influence to pressure him into retirement from Institute of Medical Radiaology, whereupon Timofeev-Resovskij became a consultant to the Institute of Medical-Biological Problems and of Developmental Biology, in Moscow. As a consultant for the institute, he studied space medicine and continued his research on genetics. He also served as a consultant to the Institute of Developmental Problems, in Moscow, as well as Moscow State University. With several of his students, he also wrote his last book, Introduction to Molecular Radiobiology: Physico-Chemical Foundations [in Russian], which was published in 1981. Timofeev-Resovskij was a non-rehabilitated ex-prisoner and was therefore not allowed to leave the Soviet Union. He was, however, able to meet foreign colleagues who came to Russia. In 1969, a short time before receipt of his Nobel Prize, Max Delbrück traveled to the Soviet Union and unofficially met with Timofeev-Resovskij. In addition to once again seeing his colleague Timofeev-Resovskij, Delbrück hoped to appeal to the Soviet authorities to mitigate his colleague's harsh living conditions; however, he was not given an opportunity to bring his request to the attention of the authorities. Timofeev-Resovskij, also met with foreign colleagues attending conferences, such as at the Second Meeting of the Vavilov Society of Genetics and Selection (Moscow, 1972) and at the 14th International Congress of Genetics (Moscow, 1978). Timofeev-Resovskij's lifelong companion and scientific research partner, Helena, died on 29 April 1973. At this time, their son, Andrew, was a physics professor at the University of Sverdlovsk (now Ekaterinburg). Timofeev-Ressovsky died in Obninsk, in a hospital room of the Institute of Medical Radiology (IMR) on 28 March 1981. He was buried at the Konchalovskoe cemetery in Obninsk. A minor planet 3238 Timresovia discovered by Soviet astronomer Nikolai Stepanovich Chernykh in 1975 is named after him. Postscript Daniil Aleksandrovich Granin's novel Зубр (translated as The Bison: A Novel about the Scientist Who Defied Stalin [1990]) appeared in