CONTENTS. 
CONTENTS OF No. XCVII, N.S., JANUARY, 1885. 
MEMOIRS : 
PAGE 
The Significance of Kupffer’s Vesicle, with Remarks on other Ques- 
tions of Vertebrate Morphology. By J. T. Cunningham, B.A., 
Fellow of University College, Oxford, Superintendent of the 
Scottish Marine Station. (With Plate I) . .1 
Blastopore, Mesoderm and Metameric Segmentation. By W. H. 
Caldwell, M.A., Fellow of Caius College, and Balfour Student 
in the University of Cambridge. (With Plate II) . . 15 
On the Origin of the Hypoblast in Pelagic Teleostean Ova. By 
George Brook, F.L.S. (With Plate III) . . .29 
On the Presence of Eyes in the Shells of Certain Chitonidae, and 
on the Structure of these Organs. By H. N. Moseley, F.R.S., 
Linacre Professor of Human and Comparative Anatomy in the 
University of Oxford. (With Plates IV, V, and VI) . . 37 
Archerina Boltoni, nov. gen. et sp., a Chlorophyllogenous Pro- 
tozoon, allied to Vampyrella, Cienk. By E. Ray Lankester, 
M.A., F.R.S., Jodrell Professor of Zoology in University College, 
London. (With Plate VII) . . . . .61 
On the Apex of the Root in Osmunda and Todea. By F. O. 
Bowes, M.A., Lecturer on Botany at the Normal School of 
Science, South Kensington. (From the Jodrell Laboratory, 
Royal Gardens, Kew.) (With Plates VIII and IX) . .75 
Correction of an Error as to the Morphology of Welwitschia 
Mirabilis. By F. O. Bower, M.A., Lecturer on Botany 
at the Normal School of Science, South Kensington . . 105 
E. Van Beneden’s Researches on the Maturation and Fecundation of 
the Ovum. By J. T. Cunningham, Fellow of University College, 
Oxford, Superintendent of the Scottish Marine Station. (With 
Plate X) . . . . . . . .107 
