Collected by the Fisheries Experiment Station, Conwy, re. the cultivation and purification of mussels, and oysters and other shellfish and crustaceans at other sites in the UK and abroad.
Includes photographs from Brightlingsea, Essex; Lympstone, Devon; Yarmouth; Isle of Lewis; Whitstable; King's Lyn; Cornwall; St David's, Pembrokeshire; Foley and New Zealand.