title: Analogue transactions with Adelbert Ames.
authors.forename: R L
authors.initials: RL
authors.lastname: Gregory
mesh_terms: D049673:History, 20th Century; D006801:Humans; D007088:Illusions; D009903:Optical Illusions; D010469:Perceptual Distortion; D011589:Psychology, Experimental / Q000266:history; D014481:United States; D014796:Visual Perception