 He extended his experiment by making large paintings from the small ones he had made in flight.In planning the exhibition of these, it occurred to him that they should not hang on the wall, but be positioned on the floor, flat and face-up, while the audience would view them from the side, at an oblique angle (as in anamorphosis), thereby enhancing the feeling of depth.For 18 years, from 1924 to 1942, Warner was an associate professor of painting and design at the College of Fine Arts at the Carnegie Institute of Technology in Pittsburgh, Pennsylvania.