F. S. Wright 151 



British mussel beds are liable to much destruction from time to time, 

 through silting and other causes. Thus, the leasing of portions of the 

 mussel beds would simply give cause for further dissatisfaction. Co- 

 operation between themselves, on the other hand, and their prior claim 

 to the limited accommodation afforded by the mussel-cleansing tanks, 

 would render their molestation by outsiders an impossibility. At the 

 present time, most fishermen (on the west coast of Wales, at least), 

 cannot be made to realise that regularity of supply creates a steady 

 market. 



I have now to thank those gentlemen who have kindly assisted me 

 during the progress of the work, and in the preparation of this paper. 

 I am greatly indebted to Dr J. Travis Jenkins, the Superintendent of 

 the Lancashire and Western Sea Fisheries Committee, for much advice 

 and assistance. Mr W. E. Whitehouse, and Mr C. L. Walton, both of 

 the U.C.W. Aberystwyth, have also greatly assisted me in many ways. 

 I have to thank Captain Enoch Lewis, of Aberdovey, for allowing me 

 the use of a room as a laboratory. 



LITERATURE CONSULTED 



(See also text and notes). 



BuLSTRODE, Dr H. TiMBRELL. Report on Shellfish other than Oysters in Relation 

 to Disease. London, His Majesty's Stationery Office, 1911. 



DuRLACHER, F. W. On the Drift of Sewage in the Dovey Estuary in Relation to the 

 Mussel Beds. (With Chart.) Report of the Lancashire and Wesiern Sea, Fisheries 

 Laboratory at the University of Liverpool, 1913. 



On the Drift of Sewage in the Estuary of the Mawddach in Relation to 



the Mussel Beds. (With Chart.) Ibid. 



DuRLACHER, F. W. and Walton, C. L. Notes on the Inshore Fisheries of Cardigan 

 Bay. Zoological Dept., Univ. College of Wales, Aberystwyth, June 1915. 



Field, Irving A. The Sea Mussel Industry. Repriiated from the Transactions of 

 the American Fisheries Society for 1913. (A very interesting and useful papsr.) 



The Ultimate Sources of Marine Food. Transactions American Fisheries 



Society for June, 1916. Vol. XLV, No. 3. (See also references to the works of 

 this author in the present article.) 



FuLLARTON, J. H. The Clyde Mussel Beds. Tenth Annual Report of the Fishery 

 Board for Scotland, for 1888. 



On Buchot Mussel Culture and the Buchot Experiment at St Andrews. 



Ninth Annual Report of the Fishery Board for Scotland, for 1890. 



Herdman, W. a. and Scott, A. Note on an elongated variety of Balanus crenatus 



on certain mussel beds. Report of the Lancashire and Western Sea. Fisheries 



Laboratory at the University of Liverpool, 1913. 

 Herdman, W. A. Public Health Bacteriology in the Lancashire and Western Sea 



Fisheries District. (Refers to the duration of life of certain pathogenic bacteria 



in the sea.) Ibid. 1911. 

 ■ Notes on the Spawning and Food of Mytilus. Ibid. 1892, 1900. 



