CONTENTS OF No. 148-New Series. 



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 Mesoglcea of 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 Pro- 

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

 40—43) 395 



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

 Goodrich, P.L.S., Assistant to the Linacre Professor of Compa- 

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



