Russian mathematician and author of mathematical works. Of his books the best known are: "Obscheponyatnaya Teoriya Perspectivy," 1858; "Obscheponyatnaya Prakticheskaya Geometriya," 2d ed. 1860; "Nizshaya Geodesiya," 2d ed. 1861; "Prakticheskaya-Arifmetika Dlya Dyevitz," 1862; "Kurs Arifmetiki i Sobraniye Arifmeticheskikh Zadach," 2d ed. 1871; "Nachalnyya Osnovaniya Geometrii," 2d ed. 1871; and "Arifmetika Dlya Nachalnykh Narodnykh Uchilishch," 1872.