The question of a localization of some degree in the lateral geniculate body in regard to the termination of fibres from different parts of the retina is no longer a matter of discussion. The Classical work of Henschen and Winkler in support of this conception has been amply substantiated by later investigators. In 1913 and 1914 Rönne published his remarkable observations on the atrophy in the lateral geniculate body which ensued in a series of cases of diabetic and alcoholic amblyopia, and established quite definitely that the central part of the nucleus is concerned with the reception of macular fibres, while the medial and lateral sections are related to peripheral vision. Ten years later, these observations were put to an experimental test on several species of mammals by Brouwer (1923), Brouwer and Zeeman (1925, 1926), and Overbosch (1927) and were confirmed and extended.