Beschreibung:

i. The principles of science: a treatise on logic and scientific method. London: Macmillan, 1874, 2 volumes, FIRST EDITION, original reddish-brown cloth, contemporary ownership signatures and bookplate, preserved in cloth folding boxes, browned, endpaper of volume 2 torn, cloth very torn and stained, hinges of volume 1 broken, hinges of volume 2 starting (bought from Michael Phelps, 1982), [T&W J17] ii. Elementary lessons in logic: deductive and inductive with copious questions and examples, and a vocabulary of logical terms. London: Macmillan, 1880, new edition, original cloth, (bought from Morgan, 1990), [T&W J12] 8vo