Cylchgronau Cymru

NATURE IN WALES The Quarterly Journal of the West Wales Field Society Editors R. M. LOCKLEY. P. M. MILES. W. S. PEACH. Editorial Address :-Nature in Wales, Orielton, Pembroke. CONTENTS OF VOL. 3. NUMBER 4. WINTER, 1957 Page Cicendia filiformis AND Deschampsia Setacea NEW TO NORTH WALES. Ann Conolly (University of Leicester) and Patricia M. Smith 497 OYSTERCATCHERS (Haemotopus ostralegus) AS PESTS OF COCKLE AND MUSSEL BEDS. R. E. Drinnan and H. A. Cole 499 LETTERS 503 VOLE DAMAGE IN WALES 1956/7. W. A. Cadman 504 SOCIETY'S NOTES 508 INDEX 510 The Editors and their Scientific Advisers endeavour to main- tain a high standard of accuracy but do not accept responsibility for the statements and opinions of the contributors to this Journal. Issued free to all Members of the West Wales Field Society. On sale, price 2s. 6d.