AT THE BOTTOM OF THE SEAYear: 1899Price: £11.5Number in set: 6TREASURES OF THE SEAYear: 1902Price: £12.5Number in set: 6SEA CREATURESYear: 1908Price: £13.5Number in set: 6PHOSPHORESCENT SEA LIFEYear: 1922Price: £20Number in set: 6UNDERWATER LIFEYear: 1936Price: £9Number in set: 6THE SEA DOWN TO 900 METRESYear: 1937Price: £15Number in set: 6CRUSTACEANSYear: 1938Price: £4.5Number in set: 6THE LIFE OF CORALYear: 1939Price: £5Number in set: 6SEA MAMMALS IYear: 1941Price: £9Number in set: 6SPONGE FISHINGYear: 1943Price: £6Number in set: 6MARINE ALGAE ENCOUNTERED ON OUR COASTYear: 1953Price: £4Number in set: 6SEA MAMMALS IIYear: 1953Price: £5Number in set: 6THE SEA SHOREYear: 1954Price: £4Number in set: 6OYSTERSYear: 1954Price: £4Number in set: 6SPECIES OF FROGYear: 1957Price: £3Number in set: 6MARINE PLANKTONYear: 1957Price: £3Number in set: 6MARINE PARASITESYear: 1960Price: £3.5Number in set: 6MARINE LIFEYear: 1963Price: £4.5Number in set: 6