lV CONTENTS. 
A Contribution to the Morphology and Development of the 
Pectoral Skeleton of Teleosteans. By H. H. Swinnexton, 
DSc., F.Z.S., University College, Nottingham. (With Plate 
23 and three Figures in the Text) ; 
Observations on Hematozoa in Ceylon. By ALDo CAsTELLANI, 
M.D., Director of the Bacteriological Institute, Colombo, and 
Artuur Wit ey, F.R.S., Director of the Colombo Museum. 
(With Plate 24) ; : : : 
The Gastrulation of the Vesicles By A. A. W. Husrecut 
The Gastrulation Question. By Franz Keipen 
CONTENTS OF No. 195, N.S., DECEMBER, 1905. 
MEMOIRS: 
Studies on the Turbellaria. By W. A. Haswett, M.A., D.Sce., 
F.R.S., Challis Professor of Biology, University of Sydney. 
Parts Land II. (With Plates 25—27) 
Notes on the Segmentation and Phylogeny of the Ar ironede! “ail 
an Account of the Maxille in Polyxenus lagurus. By GEORGE 
H. Carpenter, B.Sc.Lond., M.R.1.A., Professor of Zoology in 
the Royal College of Science, Dublin. (With Plate 28) 
Notes on the Maturation of the Ovum of Aleyonium digitatum. 
By M. D. Hitt, M.A.Oxon., Assistant Master at Eton College . 
On Some Points in the Anatomy of the Platydesmide. By F. G. 
Srncuarr, F.L.8. (With Plate 29) P : 
Rhinosporidium kinealyi, n.g., n.sp., a new Sporozoon from 
the Mucous Membrane of the Septum Nasi of Man. By E. A. 
Mincuin, M.A., Professor of Zoology at University College, 
London, and H. B. Fantuam, B.Sc., A.R.C.S., me 
College, London. (With Plates 30 and 31) 
CONTENTS OF No. 196, N.S., FEBRUARY, 1906. 
MEMOIRS: 
Studies in Spicule Formation. Part IV. By W. Wooptanp, 
University College, London. (With Plates 32—34) : 
On the Maturation of the Unfertilised Egg, and the Fate of the 
Polar Bodies in the Tenthredinide (Sawflies). By L. Don- 
CASTER, M.A., Mackinnon Student of tle Royal Society. (With 
Plates 35 “El 36) ; ; d 
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