"The economy of the eyes" : ophthalmology and the observer --Spectacles of spectacles : signifying the binocular observer --The anatomy of print, the physiology of vision and viuality of commerce --Daguerrean vision : a dialectics of antebellum perception --Paint, print and perception in American genre painting : Francis W. Edmonds and Richard Caton Woodville --Melville's vision(s) : Herman Melville, visual perception and the daguerreotype, 1848-1853 --The incorporation of American visual culture