No. 261.— December 8, 1887. 



On the Bone in Crocodilia which is commonly regarded as the Os Pubis, 

 and its representative among the Extinct Eeptilia. By H. G. Seeley, 

 F.R.S., Professor of Geography in King's College, London 235 



The Post-embryonic Development of Julus terrestris. By F. G. Heath- 

 cote, M.A ... 243 



On the Sexual Cells and the Early Stages in the Development of Millepora 

 plicata. By Sydney J. Hickson, M.A. Cantab, D.Sc. Lond., Fellow of 

 Downing College, Cambridge 245 



On Photometry of the Glow Lamp. By Captain Abney, R.E., F.R.S., 

 and Major-General Festing, RE., F.R.S 247 



On the Detonating Bolide of November 20th. 1887. Bv G. J. Symons, 

 F.R.S I ; 263 



List of Presents 264 



December 15, 1887. 



Note on the Development of Feeble Currents by purely Physical Action, 

 and on the Oxidation under Voltaic Influences of Metals not ordinarily 

 regarded as spontaneously Oxidisable. By C. R. Alder Wright, D.Sc, 

 F.R.S., Lecturer on Chemistry and Physics, and C. Thompson, F.C.S., 

 F.I.C., Demonstrator of Chemistry in St. Mary's Hospital Medical 



School 268 



The Early Development of the Pericardium, Diaphragm, and Great Veins. 

 By C. B. Lockwood, F.R.C.S., Hunterian Professor of Anatomy in the 

 Royal College of Surgeons of England 273 



An Investigation into the Function of the Occipital and Temporal Lobes 

 of the Monkey's Brain. By Sanger Brown, M.D., and E. A. Schafer, 

 F.R.S., Jodrell Professor of Physiology in University College, London 276 



List of Presents 276 



December 22, 1887. 



On the Heating Effects of Electric Currents. No. II. By William Henry 

 Preece, F.R.S. 280 



A Contribution to the Studv of the Comparative Anatomy of Flowers. 

 By Rev. G. Henslow, M.A., F.L.S., &c 296 



The Early Stages in the Development of Antedon rosacea. Bv H. Bury, 

 B.A., F.L.S., Scholar of Trinity College, Cambridge 297 



Heat Dilatation of Metals from Low Temperatures. By Thomas Andrews, 

 F.R.S.E 299 



List of Presents 305 



