A text book of geometrical drawing, for the use of mechanics and schools, in which the definitions and rules of geometry are familiarly explained ... : with illustrations for drawing plans, sections and elevations of buildings and machinery ... a course of linear perspective and shadows : an essay on the theory of color, in its application to architectural and mechanical drawings : the whole illustrated with fifty-six steel plates /

Added t.-p., illus.

A colloquy on the utilitarian theory of morals presented in Mr. W. E. H. Lecky's 'History of European morals from Augustus to Charlemagne.' /

Mode of access: Internet.

The theory of our national existence, as shown by the action of the government of the United States since 1861.

Mode of access: Internet.