V/ THE BIOLOGY OF 



m THE SEA-SHORE 



^/ 



TN\r?: ^- ^- FLATTELY 



l^fl 1 *^"^ LECTURER IN ZOOLOGY, UNIVERSITY OF DURHAM 



AND 



C. L. WALTON, M.Sc.(Wales) 



UNIVERSITY COLLEGE OF NORTH WALES, BANGOR 



WITH AN INTRODUCTION BY 



J. ARTHUR THOMSON, M.A., LL.D. 



PROFESSOR OK NATURAL HISTORY IN THE UNIVERSITY OF ABERDEEN 



NEW YORK 

 THE MACMILLAN COMPANY 



