[ xvi ] 
VII. Memoir on Symmetric Functions of the Roots of Systems of Equations. By 
P, A. MacMahon, Mayor, Royal Artillery. Communicated hy Professor 
Greenhill, F.R.S. .page 481 
VIII. Account of recent Pendulmn Operations for determining the relative Force of 
Gravity at the Kew and Greenwich Observatories. By General J. T. Walker, 
C.B., R.E., F.R.S., LL.D. {Communicated at the request of the Kew Com¬ 
mittee) .537 
IX. On the Alleged. Slipping at the Boundary of a Licquid in Motion. By W, C. 
Dampier Whetham, B.A., Coutts-Trotter Student of Trinity College, Cam¬ 
bridge. Communicated by J. J. Tpiomson, M.A., F.R.S., Cavendish Professor 
of Experimental Physics, Cambridge .559 
X. A Determination of “ v,” the Ratio of the Electromagnetic Unit of Electricity to 
the Electrostatic Unit. By J. J. Thomson, AT.A., F.R.S., Cavendish Professor 
of Experimental Physics, Cambridge, and G. F. C. Searle, B.A., Peterhouse, 
Demonstrator at the Cavendish Laboratory, Cambridge .583 
Index .. 623 
