The system of employing teachers of state schools of higher learning in the Second Republic was based on a limited number of professorial chairs and permanent positions for the auxiliary staff. Throughout almost the entire interwar period professors received rather high wages, at least from the viewpoint of Polish conditions: in the 1930s their basic wages reached up to 1000 zlotys. They also enjoyed considerable freedom of scientific world and opportunities of earning additional wages. An overwhelming majority of academic courses was, however, conducted by members of the auxiliary staff or contracted dozents, whose income was two or three times lower than that of the professors, and chances for a meaningful promotion – slight. Even world-renowned accomplishments did not provide such guarantees. By way of example, the Warsaw and Lwow school of mathematics gained international acclaim, but only five out of a total of more than ten of its most talented representatives received professorial posts.