Abstract
The article critically analyses the monograph dedicated to the life and work of four Czech mathematicians - Teodor Monin (1858-1893), František Vítězslav Splítek (1855-1943), Vladislav Šak (1860-1941) and Antonín Václav Šourek (1857-1926), who decided to go to Bulgaria at the beginning of 1880s, by reason that they could not find an emloyment as professors at secondary schools in the Czech community.