1850 printing of the 1850 copyrighted text. This text professes to elevate invention to the first rank in rhetorical instruction. It credits Whately as the only other recent author not to excluded invention, but states that he does so more narrowly than this work shall do. Secondly, it attempts to reduce of the principles of rhetoric to a more exact system,. The art of rhetoric is philosophically distinguishable from logic, grammar, aesthetics, poetry, and elocution, and it is not limited, as it is in Whately, to argumentation. Day argues that explanation and persuasion are large parts of rhetoric and distinguishable from argumentation. and the treatment of rhetoric as an art rather than a science. Thirdly, an emphasis on the practice of rhetoric as an art, and not merely a science, has resulted in the prescription of numerous exercises, and the inclusion of an appendix of themes for composition. The preface credits the influence of German writers Schott, Hoffmann, Richter, Eschenburg, Theremin, and Becker. The text it is divided into two parts: invention and style. Invention is further divided into explanation, confirmation, excitation, and persuasion. Style is divided into absolute properties, subjective properties, and objective properties. The Schultz Archive copy is roughly the complete text.