The Thames at Westminster Bridge, Edward Monet (1871)

Sunday Afternoon on the Island of La Grande Jatte, Georges Seurat, (1886)

Girl with a Watering Can, Pierre Auguste Renoir (1876)

A movement in modern art that had its inception in the 1860s and received its name after its first exhibition in 1874, impressionism "was characterized above all by its concern with fleeting effects of light and motion, its disregard of outlines and distaste for sombre colours, its original angles  of vision, and its general aura of delicate yet mundane gaiety" (The Harper Dictionary of Modern Thought).  Its best known adherents included Claude Monet, Auguste Renoir, Camille Pissarro, and Alfred Sisley.

The 19th Century art movement known as "Impressionism"  interested Barfield as a chapter in the evolution of consciousness as revealed in/recorded in art.

    Now for the Impressionist painters this [their participation in the creation of phenomena] became a real experience. They really painted nature in the light of the eye, as no other painters had done before them. They were striving to realize in consciousness the normally unconscious activity of "figuration" itself. They did not imitate; they expressed "themselves" inasmuch as they painted nature as the representation of Man. They will serve as a reminder -though they are not the only one--that the rejection of original participation may mean, not the destruction but the liberation of images. (SA 132)
See in particular Saving the Appearances, Chap. XIX.