PEOCEEDINGS OF 

 THE ROYAL SOCIETY. 



VOL. LXVI. 



No. 425. 



CONTENTS 



Meeting of December 14, 1899, and List of Papers^ 



On the Origin of certain Unknown Lines in the Spectra oFStfRW^Ptffe /3 Crucis 

 Type, and on the Spectrum of Silicon. By Joseph Ltjnt, B.Sc, E.I.C., 

 Assistant Eoyal Observatory, Cape of Grood Hope. Commxmicated by 

 David Gill, C.B., F.R.S., Her Majesty's Astronomer at the Cape . 



A Xote on the Electrical Kesistivity of Electrolytic Mckel. By J. A. Fleming , 

 M.A., D.Sc, F.R.S., Professor of Electrical Engineering, University 

 College, London , . 50 



Obsei'vations on the Morphology of the Blastomycetes found in Carcinomata. 

 By Keith W. Monsaeeat, M.B., F.R.C.S.E. Communicated by Pro- 

 fessor Sherrington, F.R S. 



Meeting of January 18, 1900, and List of Papers read 



Upon the Development of the Enamel in certain Osseous Fish. By Chakles 

 S. Tomes, M.A., F.S.S. 



Further Observations on ' Nitragin ' and on the Nature and Functions of the 

 Nodules of Leguminous Plants. By Maeia Dawson, B.Sc. (Lond. and 

 Wales), 1851 Exhibition Science Research Scholar. Communicated by 

 Professor H. Marshall Waed, F.R.S 



On the Innervation of Antagonistic Muscles. 

 Shereihgton, M.A., M.D., F.R.S. . 



On the Viscosity of Avgou as affected by Temperature 

 F.R.S 



Sixth Note. By C. S. 



By Lord Rayleiq-h, 



On the Behaviour of tlie Becquerel and Rontgen Rays in a Magnetic Field. 

 By the Hon. R. J. Strtjtt, B.A., Scholar of Trinity College, Cambridge. 

 Communicated by Loed Ratleigh, F.R.S. 



An Experimental Investigation of the Thermo-dynamical Properties of Super- 

 heated Steam. By John H. G-eindlbt, B.Sc, Wh. Sch., Exhibition (1851) 

 Scholar, late Fellow of the Victoria University. Communicated by Pro- 

 fessor Osboene Reynolds, F.R.S 



Researches in Absolute Mercurial Thermometry. By the late S. A. Sworn, 

 M.A. Communicated by H. B. Dixon, F.R.S. With Note by Professor 

 SCHTJSTEE, F.R.S . • 



44 



58 

 61 



61 



66 



75 



79 i 



PoHce Two Shillings 



March 3, 1900. 



