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Experiments in Examination of the Peripheral Distribution of the 

 Fibres of the Posterior Roots of some Spinal Nerves. By C. S. 

 Sherrington, M.A., M.D., Lecturer on Physiology at St. Thomas's 

 Hospital, London 333 



Preliminary Account of the Nephridia and Body Cavity of the Larva of 

 Palcemonetes varians. By Edgar J. Allen, B.Sa, University College, 

 London 338 



List of Presents 343 



December 15. 1892. 



On an Apparatus for facilitating the Reduction of Tidal Observations. 

 By G. H. Darwin, F.R.S., Plumian Professor and Fellow of Trinity 

 College, Cambridge 345 



On some new Reptiles from the Elgin Sandstone. By E. T. Newton, 

 F.G.S 389 



The Electromotive Properties of the Skin of the Common Eel. By E. 

 Waymouth Reid, Professor of Physiology in University College, 

 Dundee . 391 



Preliminary Note on the Relation of the Ungual Corium to the Peri- 

 osteum of the Ungual Phalanx. By F. A. Dixey, M.A., M.D., Fellow 

 of Wadham College, Oxford 392 



Experiments on the Action of Light on Bacillus anthracis. By H. 

 Marshall Ward, F.R.S., Professor of Botany, Royal Indian Engineer- 

 ing College 393 



List of Presents 400 



On the Method of Examination of Photographic Lenses at the Kew 

 Observatory. By Leonard Darwin, Major, late Royal Engineers .... 403 



No. 319. January 19, 1893. 



BAKERIAN LECTURE. The Rate of Explosion in Gase?. By Harold B. 

 Dixon, M.A., F.R.S., Professor of Chemistry in the Owens College, 

 Manchester 451 



List of Presents 453 



January 26, 1893. 



On the Physiology of the Embryonic Heart (Preliminary Communi- 

 cation). By J. W. Pickering, B.Sc., Assistant Demonstrator in 

 Biology at St. Bartholomew's Medical School 461 



Further Researches in Connexion with the Metallurgy of Bismuth. By 

 Edward Matthey, F.S.A., F.C.S., Asscc. Roy. Sch. Mines 467 



On the Three-Bar Motion of Watt. By William Brennand 472 



List of Presents 474 



No. 320. February 2, 1893. 



A New Portable Miner's Safety-lamp, with Hydrogen Attachment for 

 Delicate Gas-testing ; with Exact Measurements of Flame-cap Indi- 

 cations furnished by this and other Testing Lamps. By Frank 

 Clowes, D.Sc. Lond., Professor of Chtmibtry, University College, 

 Nottingham 484 



