This book is essentially based on previously unknown archival sources
and newspaper articles. Chuprov (1874-1926) is shown as a scientist with
a broad field of interests (statistics with various applications
including natural sciences, mathematical statistics, economics, burning
social issues). His particular findings in mathematial statistics are
described and also his efforts, partly successful, of uniting the
Continental direction of statistics and the Biometric school into a
single mathematical statistics. For the first time, Chuprov`s life in
emigration (mostly in Germany) is described in detail. He was recognized
by the scientific community, elected Honourable Fellow of the Royal
Statistical Society, and worshiped by Russian statisticans, but up to
ca. 1958 Soviet officialdom labelled him an ideological enemy.