vi CONTENTS. 



PAGE 



Notes on Atomic Weights. By Alexander Scott, M.A., Jacksonian 



Demonstrator in the University of Cambridge - 202 



The Growth of our Knowledge of Helium. By J. Norman Lockyer, 



C.B., F.R.S. --------- 249 



Light and Electrification. By Oliver Lodge, F.R.S., Professor of 



Physics in University College, Liverpool - - - - 417 



Recent Values of the Magnetic Elements at the Principal Magnetic 

 Observatories of the World. By Charles Chree, M.A., 

 Superintendent of Kew Observatory - - - - - 499 



T 



GEOLOGY, MINERALOGY AND PALAEONTOLOGY 



The Graptolites. By J. E. Marr, M.A., F.R.S., Fellow of St. John's 



College, Cambridge -------- 360 



Recent Discoveries in Avian Palaeontology. By C. W. Andrews - 398 

 An Extinct Plant of Doubtful Affinity. By A. C. Seward, M.A., 



F.G.S., University Lecturer in Botany, Cambridge - 428 



The Work of the Portuguese Geological Survey. By Philip Lake, 



M. A., St. John's College, Cambridge- - 439 



Petrology in America. By Alfred Harker, M. A., Fellow of St. John's 



College, Cambridge- ------- 459 



PATHOLOGY. 



The Hereditary Transmission of Micro-organisms. By G. A. Buck- 

 master, M.D., Lecturer on Physiology at St. George's Hospital, 



London ---------- 324 



PHYSIOLOGY. 



Ludwig and Modern Physiology. By J. Burdon Sanderson, M.D., 

 F.R.S., Regius Professor of Physiology in the University of 

 Oxford ---------- 1 



On Some Applications of the Theory of Osmotic Pressures to 

 Physiological Problems (Part II.). By E. H. Starling, M.D., 

 Lecturer on Physiology at Guy's Hospital, London - - 151 



Iodine in the Animal Organism. By W. D. Halliburton, M.D., 



F.R.S., Professor of Physiology in King's College, London - 454 



APPENDIX I. 

 Notices of Books, - - - - - - 1, xi, xxi, xxxi, xli 



APPENDIX II. 

 Titles of Chemical Papers, - iv, xv, xxv, xxxm, xlii, xlvii 



