Ueber die Wechselwirkung der naturkraft; Ueber das sehen des menschen
Konigsberg & Leipzig: Grafe & Unzer; L. Voss, 1854 - 1855. 8vo. 2 vols. in one. 47, [1]; 42, [2] pp. I: SECOND EDITION II: FIRST EDITION. Contemporary cloth-backed marbled boards; an excellent copy with browning to a few leaves. More