1. Aneurism of an anomalous artery causing anteroposterior division of the chiasm of the optic nerves and producing bitemporal hemianopsia Author(s): Mitchell, S. Weir (Silas Weir), 1829-1914 Publication: New York : M.J. Rooney & Co., printers, [1889?] Subject(s): Aneurysm -- complicationsHemianopsia -- etiologyOptic Chiasm -- pathologyUnited States