CONTENTS OF No. 175.-New Series. 



MEMOIRS : 



PAGE 



The Life-History of Nucula delpliinodonta (Mighels). By Gil- 

 man A. Drew, Professor of Biolojiy, University of Maine, Orono, 

 Me. (Wilh Plates 20-25) . 313 



On the Structure of the Hairs of Mylodon Listai and other South 

 American Edentata. By W. G. Ridewood, D.Sc, F.L.S., Lecturer 

 on Biology at the Medical School of St. Mary's Hospital, London. 

 (With Plate 26) 393 



On the Structure and Affinities of Saccocirrus. By Edwin S. 

 GooDKlCH, M.A., Fellow of Merton College, Oxford. (With Plates 

 27—29) 413 



On the Question of Priority with regard to certain Discoveries upon 

 the Etiology of Malarial Diseases. By George H. P. Ndttall, 

 M.A., M.D., Ph.D., University Lecturer in Bacteriology and Pre- 

 ventive Medicine, Cambridge 429 



Studies in the Retina: Rods and Cones in the Prog and in some other 

 Amphibia. By H. M. Bernard, M.A.Cantab, (from the Biological 

 Laboratories, Royal College of Science, London). Part II. (With 

 Plates 30 and 31) . 443 



Staining with Brazilin. By Sydney J. Hickson, Beyer Professor of 

 Zoology in the Owens College, Manchester 469 



