Box set of 6 volumes in cardboard slip case. Life in Shallow Sea Water by B. Bartram Cadbury; Birds of Prey by Kenneth D. Morrison; Forces In Nature by Harold N. Moldenke; Camouflage in Nature by Harold N. Moldenke; Animal Children by Alan Devoe and Life in Pacific Tide Pools. All volumes in very good condition. Slip case is well worn. Stickers pasted in. A nice set.