hardcover. The first volume from Nelson's lengthy "Vorlesungen uber die Grundlagen der Ethik." xxxiv, 710 pages. Short thick 4to, black-lettered natural cloth. Gottingen: Verlag Offentliches Leben, . First edition. Text in German. Neatly inked signature inside front cover, otherwise a near fine copy. very good(+).
Nelson (1882-1927) was a German mathematician and philosopher who was part of the Neo-Friesian School. "He produced a great quantity of work in a tragically short life. The quantity and the tragedy may have both happened because Nelson was an insomniac who worked day and night and exhausted himself into a fatal case of pneumonia." -Friesian.