A treatise on optics, for use by U.S. Military Academy cadets.

Introductory remarks and definitions --Reflection and refraction -- Fundamental laws -- Table of refractive indices and refractive powers -- Deviation at plane surfaces -- Deviation at spherical surfaces -- Deviation of small direct pencil at spherical surfaces -- Spherical lens -- Power of a lens -- Deviation by refraction through the various kinds of spherical lenses -- Deviation by reflection at spherical reflectors -- Spherical aberration -- Deviation of a small oblique pencil -- Oblique pencil through the optical centre -- Oblique pencil not through the optical centre -- Optical images -- Caustics -- Surfaces of accurate convergence -- The eye and vision -- Apparent magnitudes of objects -- Microscopes and telescopes -- Common astronomical telescope -- Galilean telescope -- Terrestrial telescope -- Compound refracting microscope -- Reflecting telescope -- Herschelian telescope -- Gregorian telescope -- Cassegrainian telescope -- Newtonian telescope -- Dynameter -- Micrometer -- Sextant -- Adjustments of sextant -- Artificial horizon -- Camera lucida -- Camera obscura -- Magic lantern -- Solar microscope -- Unequal refrangibility of light -- Dispersion of light -- Table of dispersive powers -- Chromatic aberration -- Achromatism -- Absorption of light -- Internal reflection -- Rainbow -- Halos -- Interference of light -- Divergence of light -- Colored fringes of shadows and apertures -- Double refraction -- Polarization of light -- Polarization by reflection -- Polarization by refraction -- Polarization by absorption -- Polarization by double refraction -- Interference of polarized light -- Circular polarization -- Elliptical polarization -- Colors of thin plates.