PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



vol. xxviii. No. 191, 



CONTENTS. 



December 5, 1878. 



PAG-E 



I. On the Illumination of Lines of Molecular Pressure, and the Trajectory of 



Molecules. By William Ceookes, F.R.S., V.P.C.S 103 



II. On a Machine for the Solution of Simultaneous Linear Equations. By Sir 



William Thomson Ill 



December 12, 1878. 



I. On the Plow of Water in Uniform Re jime in Rivers an d other Open 

 Channels. By James Thomson, LL.D, D.Sc., F.R.S., and F.R.S. E., 

 Professor of Civil Engineering and Mechanics in the University of 

 Glasgow ............ 114 



II. The Magic Mirror of Japan. Part I. By Professors W. E. Aybton 



and John Peeey, of the Imperial College of Engineering, Japan . 127 



III. On the Torsional Strain which remains in a Glass Fibre after release 



from Twisting Stress. By J. Hopkinson, D.Sc, F.R.S. . . . 148 



IV. Note in correction of an Error in the Rev. Dr. Haughton's Paper " Notes 



on Physical Geology. No. V " (" Proc. Roy. Soc," vol. xxvii, p. 447). 

 By the Rev. Samuel Hauq-hton, M.D., Professor of Greology in the 

 University of Dublin, F.R.S 154 



V. Measurements of Electrical Constants. No. II. On the Specific Induc- 

 tive Capacities of Certain Dielectrics. Part I. By J. E. H. Goedon, 

 B.A. Camb 155 



VI. Researches in Spectrum Analysis in connexion with the Spectrum of the 



Sun. No. VII. By J. N. Loceyee, F.R.S 157 



For continuation of Contents see 4<th page of the Wrapper. 



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