Nineteen hand drawn diagrams of transverse section of a dog's brain, copied from Rioch, David McKenzie, 1929 "Studies on the Diencephalon of Carnivora. Part i. Certain Nuclear Configurations and Fiber Connections of the Subthalamus and Midbrain of the Dog and Cat." the Journal of Comparative Neurology Vol. 49 (Pt. 1). Pg. 94-153.