IV 



No. B 524.— September 3, 1906. 



PAGE 



Croonian Lecture, 1906. — On Nerve Endings and on Special Excitable Substances 

 in Cells. By J. N. Langiey, F.R.S., Professor of Physiology in the University 



of Cambridge 170 



The Experimental Analysis of the Growth of Cancer. By E. F. Bashford, M.D., 

 J. A. Murray, M.B., B.Sc, and W. H. Bowen, M.S., F.R.C.S. Communicated 

 by Professor J. Rose Bradford, F.R.S 195 



Sex-determination in Hydatina, with Some Remarks on Parthenogenesis. By 

 R. C. Punnett, Fellow of Gonville and Caius College and Balfour Student in 

 the University of Cambridge. Communicated by Adam Sedgwick, F.R.S. 

 (Plate 11) 223 



On the Julianiacese, a New Natural Order of Plants. By W. Botting Hemsley, 

 F.R.S., F.L.S., Keeper of the Herbarium and Library, Royal Botanic Gardens, 

 Kew. (Abstract) 231 



Communication on Regeneration of Bone. By Sir William Macewen, F.R.S 237 



No. B 525.— October 12, 1906. 



Glossina palpalis in its Relation to Trypanosoma, gambiense and other Trypanosonies 

 (Preliminary Report). By E. A. Minchin, M.A., Professor of Protozoology in 

 the University of London, Lieutenant A. C. H. Gray, R.A.M.C., and the late 

 Lieutenant F. M. G. Tulloch, R.A.M.C. (Sleeping Sickness Commission). 

 Communicated by the Tropical Diseases Committee. (Plates 12 — 14) 242 



Regeneration of Nerves. By F. W. Mott, M.D., F.R.S., W. D. Halliburton, M.D., 



F.R.S., and Arthur Edmunds, M.S., B.Sc, F.R.C.S. (Plate 15) 259 



Observations on the Labyrinth of Certain Animals. By Albert A. Gray, M.D., 

 F R.S.E., Aural Surgeon to the Victoria Infirmary, Glasgow. Communicated 

 by Professor John G. McKendrick, M.D., F.R.S. (Plates 16—18) 284 



On the Main Source of " Precipitable " Substance and on the Hole of the Homologous 

 Proteid in Precipitin Reactions. ByD. A. Welsh, M.A., B.Sc, M.D., Professor 

 of Pathology in the University of Sydney, and H. G. Chapman, M.D., B.S., 

 Demonstrator of Physiology in the University of Sydney. Communicated by 

 Dr. C. J. Martin, F.R.S 297 



Observations on the Development of Ornithorhynchus. By J. T. Wilson, M.B., 

 Professor of Anatomy, and J. P. Hill, D.Sc, Lecturer on Embryology, 

 University of Sydney, N.S.W. Communicated by Sir William Turner, K.C.B., 

 F.R.S. (Abstract) 313 



Remarks on Mr. Plinmier's Note on the Effects produced in Rats by the Trypano- 

 somata of Gambian Fever and Sleeping Sickness. By H. Wolferstan Thomas, 

 M.D., CM. (McGill) (J. H. Todd Memorial Fellow in Tropical Medicine), 

 Liverpool School of Tropical Medicine, Johnston Tropical Laboratory, 

 University, Liverpool. Communicated by Professor R. Boyce, F.R.S 316 



