Salmon, George (1819–1904)
Volterra, Vito (1860–1940)
Planck, Max (1858–1947)
Liebmann, Heinrich (1874– )
Bert, Paul (1833–1886)
Ritter, Frédéric (1819–1893)
Mach, Ernst (1838–1916)
Rudio, Ferdinand (1856–1929)
Veronese, Giuseppe (1854–1917)
Duhem, Pierre (1861–1916)