General problems of shades and shadows. [electronic resource] Formed both by parallel and by radial rays; and shown both in common and isometrical projection: together with the theory of shading. By S. Edward Warren ...
Electronic text and image data. Ann Arbor, Mich. : University of Michigan, Digital Library Initiatives, 2000. Includes both TIFF files and keyword searchable text. [Making of America] This volume is made possible by a grant from the Andrew W. Mellon Foundation as part of Making of America IV: the American voice, 1850-1877.
