London: John Murray, 1878, 1877, 1877, 1875.. Four volumes, mixed editions. 8vo. Uniformly bound in contemporary green full calf, spines with raised bands, gilt lettered red spine labels, the other compartments richly gilt, endpapers and all edges marbled , the early book label of a Walter Palmer of "The Acacias, Reading" to the front free endpapers. "Origin..." with a folding plate, illustrations in the text throughout the other works. Foxing to the front and rear of each volume, some rubbing to the extremities, a handsome set of these early issues. "Origin of Species" - sixth edition, 20th thousand, dated 1878 (the second issue of the definitive text published two years earlier); "Various Contrivances..." - second edition, revised (preceded only by the first edition of 1862); "Descent of Man" - second edition, 12th thousand, revised and augmented, 1877; "Insectivorous Plants" - second thousand (preceded only by the first issue published in July the same year). Freeman,…