Sanding (dance) the box of rosin before matches to improve his grip. Sims' popularity as a tap dancer and career at the Apollo certainly made him one of the most if not the most influential sand-dancer of all time. Sand dancing was also used by the popular comedic vaudeville trio, Wilson, Keppel and Betty. They spread sand over the stage in one of their most well-known numbers, "Sand Dance". In their performance, there was no allusion to African American heritage; rather to the sandy environs of Egypt, a clear inspiration for their number. In spite of this deviation from the African American
Marx in the Mid-Twentieth Century the Mid-Twentieth Century" was published by Anchor Books in 1967. "Marx in the Mid-Twentieth Century" received a positive review from Edward D. Wilde in "American Political Science Review". The book was also discussed by Hwa Yol Jung in "Continental Philosophy Review". Joseph Bien and Heinz Paetzold identified Petrović as Croatia's leading 20th-century philosopher in "The Cambridge Dictionary of Philosophy". They stated that "Marx in the Mid-Twentieth Century" is, together with "Philosophie und Revolution", one of the works for which he is best remembered. Petrović's treatment of Marx's theory of history has been commended for its care by the political theorist