CONTENTS. 



CONTENTS OF No. 148, N.S., MAY, 1895. 



MEMOIRS : PAGE 



The Anatomy of Alcyonium digitatum. By Sydney J. 

 HiCKsoN, M. A., D.Sc, Beyer Professor of Zoology in the Owens 

 College, Manchester ; Fellow of Downing College, Cambridge. 

 (With Plates 36—39) 343 



Note on the Chemical Constitution of the Mesoglceaof Alcyonium 

 digitatum. By W. Langdon Brown, B. A., late Hutchinson 

 Research Student, St. John's College, Cambridge . . 389 



A Study of Metamerism. By T. H. Morgan, Ph.D., Associate 

 Professor of Biology, Bryn Mawr College, U.S.A. (With Plates 

 40—43) 395 



On the Ccelom, Genital Ducts, and Nephridia. By Edwin S. 

 Goodrich, F.L.S., Assistant to the Linacre Professor of Com- 

 parative Anatomy, Oxford. (With Plates 44 and 45) . . 477 



