Fives hand drawn diagrams over two pages labelled 'Plat i Fig 2a+b', 'Plate ii Fig iii', 'Plate v Fig. 11' and 'Plate 18. Fig. 38' referenced from Huber, G Carl, Crosby, Elizabeth Caroline, "The Nuclei and Fiber Paths of the Avian Iencephalon, with Consideration of Telencephalic and Certain Mesencephalic Centers and Connections", Journal of Comparative Neurology, Vol. 48 (Pt. 1), Pg. 1-225.