CONTENTS OF No. CXXVIII.— New Series. 



MEMOIRS: 



PAGE 



Immunity against Microbes. By M. Armand Uuffeb, M.A., M.D. 

 (OxoD.). (With Plates XXXII & XXXIII) . . .417 



The Formation and Fate of the Primitive Streak, with Observations 

 on the Archenteron and Germinal Layers of Eana temporaria. 

 By Arthur Robinson, M.D., Senior Demonstrator of Anatomy in 

 the Owens College ; and Richard Assheton, M.A., Demonstrator 

 of Zoology in the Owens College. (With Plates XXXIV & 

 XXXV) 451 



On some Points in the Histology and Development of Myriothela 

 phrygia. By W. B. Hardy, B.A., Shuttleworth Scholar of Gon- 

 ville and Caius College, and Junior Demonstrator of Physiology in 

 the University of Cambridge. (With Plates XXXVI & XXXVII) 505 



On the Structure of an Earthworm allied to Nemertodrilus, Mich., 

 with Observations on the Post-embryonic Development of Certain 

 Organs. By Frank E. Beddabd, M.A., Prosector of the Zoolo- 

 gical Society of London, Lecturer on Biology at Guy's Hospital. 

 (With Plates XXXVIII & XXXIX) . . . . 539 



Some Points in the Development of Scorpio fulvipes. By Mal- 

 colm Laurie, B.Sc, F.L.S. (With Plate XL) . , .587 



Abstract of Maupas's Researches on Multiplication and Fertilisation 

 in Ciliate Infusorians. By Marcus M. Hartog, D.Sc, M.A., 

 F.L.S., Professor of Natural History at Queen's College, Cork . 599 



On the Occurrence of Pseudopodia in the Diatomaceous Genera, 

 Melosira and Cyclotella. By J. G. Grenfell, B.A., F.G.S., 

 F.R.M.S. (With Plate XLI) 615 



REVIEW : 



A Monograph of the Victorian Sponges. By Arthur Dendy, D.Sc, 

 F.L.S., Fellow of Queen's College, and Demonstrator and Assistant 

 Lecturer in Biology in the University of Melbourne. Part I. — 

 The Organisation and Classification of the Calcarea Homoccela, 

 with Descriptions of the Victorian Species (with plates i — xi) . 625 



Title, Contents, and Index. 



