Three hand drawn diagrams of a transverse section through the right cerebral hemisphere of a tuarata's (Sphenodon) brain, illustrating the transformations of the brain over a prolonged period of time, referenced from Smith, G Elliot (1871-1937) FRS, 1919, 'A Preliminary Note on the Morphology of the Corpus Striatum and the Origins of the Neopallium', Journal of Anatomy, Vol. 54 (Pt. 4), Pg. 271-291.