IV CONTENTS. 



CONTENTS OF No. 202, N.S., MAY, 1907. 



MEMOIRS : PAGE 



The Origin and Nature of the Green Cells of Convoluta ros- 

 coffensis. By Fkederick Keeble, M.A., Sc.D., University 

 College, Reading, and F. W. Gamble, D.Sc, Manchester 

 University. (With Plates 13 and 14) . . . 167 



On the Development of the Plumes in Buds of Cephalodiscus. 

 By W. G. E.IDEWOOD, D.Sc., Lecturer on Biology at St. Mary's 

 Medical School, University of London. (With 11 Text-figures) 221 



On the Structure of Jjlnigma senigmatica, Chemnifz; a Con- 

 tribution to our Knowledge of the Anomiacea. By Gilbert C. 

 Bourne, M.A., D.Sc, F.L.S., Fellow of Merton College; 

 Linacre Professor of Comparative Anatomy in the University of 

 Oxford. (With Plates 15—17, and 2 Text-figures) . . 253 



On the Chromatin Masses of Piroplasma bigeminum 

 (Babesia bovis), the Parasite of Texas Cattle-Fever. By 

 H. B. Fantiiam, B.Sc.Lond., A.B.C.S., University College, 

 London, and St, Mary's Hospital Medical School. (With Plate 

 IS, and 44 Text-figures) . . . .297 



The Skin, Hair, and Reproductive Organs of Notoryctes. Con- 

 tributions to our Knowledge of the Anatomy of Notoryctes 

 typhlops, Stirling. — Parts IV and V. By Georgina Sweet, 

 D.Sc, Melbourne University. (With Plates 19 and 20, and a 

 Text-figure) . . . . . .325 



Parorchis acanthus, the Type of a new Genus of Trematodes. 

 By William Nicoll, M.A., B.Sc, Gatty Marine Laboratory, 

 St. Andrews. (With Plate 21) . . . . 345 



CONTENTS OF No. 203, N.S., AUGUST, 1907. 



MliMOIRS: 



The Chsetognatha, or Primitive Mollusca. With a Bibliography. 

 By R. T. GiJNTHER, F.L.S., F.R.G.S., Fellow of Magdalen 

 College, Oxford. (With 10 Text-figures) . . .357 



The Structure, Development, and Bionomics of the House-fly, 

 Musca domestica, Linn, — Part I. Tiie Anatomy of the 

 Fly. By C. Gordon Hewitt, M.Sc, Lecturer in Economic 

 Zoology, University of Manchester, (With Plates 22— 26) , 395 



Trichomastix serpentis, n,sp. By C. Clifford Dobell, 

 B.A., Scholar of Trinity College, Cambridge. (With Plate 27, 

 and 2 Text-figures) ..... 449 



