New York: G.P. Putnam's Sons, Inscribed and dated 1879 on the front endpaper by Edward Cunningham, contemporary president of Union Electric Signal Company. 1879. First edition. Hardcover, 8vo. in dark green cloth with gilt spine title. 280pp. Good plus. Faint old damp stain to boards, which does not effect contents, spine ends and corners blunted. Internally unmarked in a sound binding. Digital images available upon request. Good+.