Text ( visual ) : unmediated Partial optic nerve atrophy and central scotomas (so-called central Amblyopia), apparently due to chronic lead poisoning / by George E. de Schweinitz. -- [Chicago] : [Ophthalmic Record] , 1898. -- 6 p. : ill. ; 23 cm. -- Cover title ; "Reprint from the Ophthalmic Record, June, 1898" -- Cover ; Imprint from Backcover. -- (BB00327500) ; https://ci.nii.ac.jp/ncid/BB00327500 Author Heading(s): De Schweinitz, G. E. (George Edmund)