1. Ministry of Agriculture and Fisheries. Fishery Investigations, Series 2, Vol. 8, No. 4, 1925: "Quantitative Studies on the Fauna of the Sea Bottom." No. 2: "Results of the Investigations in the Southern North Sea, 1921–24." By F. M. Davis. Pp. 50. (London: H.M. Stationery Office, 1925). 5s. net.