766. Charles J. Cook (American, early 20th century), "Fluent", c. 1910; alternative process photograph, 8" x 6", signed and titled on mat. Cook achieved interesting effects by manipulating his negatives, transforming them into positves. He mounted the image on to a gold, painted background, allowing the color of the background to be visible in the negative areas, tinting the entire image. Cook worked in Chicago, and was known for his images of nudes in the Art Nouveau aesthetic. REF: Who Was Who in American Art; biographical information that was originally from the artist. 400-600