Impressionism, a term in painting that denotes the principle of a new school originating in France before 1870, and introduced into this country some 10 years later; it is a revolt against traditionalism in art, and aims at reproducing on canvas not what the mind knows or by close study observes is in nature, but the "impression" which eye and mind gather. The influence of the movement has been strong, and promises to be lasting both here and in Germany, and not the least interesting work of the kind has of late years issued from the "Glasgow School" and the "London Impressionists."