The political and social background of naturalism, by J.M.S. Allison.
Naturalism in literature, by A. Schinz.
Naturalism in music, by L.A. Petran.
The precursors of naturalism, by J.T. Baker.
Courbet and his critics, by G. Boas.
The academic point of view in the Second Empire, by E.P. Spencer.
The anti-naturalists, by R. Cherniss.
Naturalism in America, by C.H. Sawyer.
Naturalism in English painting, by R.D. Feild.
Naturalism in the graphic arts, by A.D. Breeskin.