270 



Mr. J. C. Maxwell on Governors. 



[Mar. 5, 



March 5, 1868. 



JOHN PETER GASSIOT, Esq., V.P., in the Chair. 



In accordance with the Statutes, the names of the Candidates for elec- 

 tion into the Society were read as follows : — 



Alexander Armstrong, M.D. 



John Baily, Esq., Q.C. 



John Ball, Esq., M.A. 



Henry Charlton Bastian, M.D. 



Samuel Brown, Esq. 



Lieut. -Colonel John Cameron, R.E. 



Charles Chambers, Esq. 



Frederic Le Gros Clark, Esq. 



Robert Bellamy Clifton, Esq., M.A. 



George Critchett, Esq. 



Morgan William Crofton, Esq., B.A. 



Herbert Davies, M.D. 



Joseph Barnard Davis, M.D. 



Henry Dircks, Esq. 



P. Martin Duncan, M.D. 



William Esson, Esq., M.iV. 



Alexander Fleming, M.D. 



George Carey Foster, Esq., B.A. 



Peter Le Neve Foster, Esq., M.A. 



Sir Charles Fox. 



Edward Headlam Greenhow, M.D. 

 Peter Griess, Esq. 

 Augustus George Yernon Harcourt, 

 Esq. 



Edmund Thomas Higgins, Esq. 

 William Charles Hood, M.D. 

 George Johnson, M.D. 

 Rear- Admiral Astley Cooper Key, 

 C.B. 



David Macloughlin, M.D. 



George Matthey, Esq. 

 St. George Mivart, Esq. 

 Edward Chambers Nicholson, Esq. 

 Thomas Nunneley, Esq. 

 Rear-Admiral Erasmus Ommaney, 

 C.B. 



Captain Sherard Osborn, R.N., C.B. 

 Rev. Stephen Parkinson, B.D. 

 James Bell Pettigrew, M.D. 

 Charles Bland RadcUffe, M.D. 

 John Russell Reynolds, M.D. 

 Vice-Admiral Robert Spencer Ro- 

 binson. 



Edward Henry Sieveking, M.D. 

 Edward James Stone, Esq., M.A. 

 Colonel Henry Edward Landor 



ThuiUier, R.A. 

 Rev. Henry Baker Tristram, M.A. 

 Edward Burnet Tylor, Esq. 

 WiUiam Sandys Wright Vaux, Esq., 



M.A. 



Augustus Voelcker, Esq., Ph.D. 

 Edward Walker, Esq., M.A. 

 George Charles Wallich, M.D. 

 J. Alfred Wanklyn, Esq. 

 Edward John Waring, M.D. 

 Henry Wilde, Esq. 

 Samuel Wilks, M.D. 

 Henry Worms, Esq. 



The following communications were read : — 



1. On Governors.'' By J. Clerk Maxwell, M. A., F.R.SS.L. & E. 

 Received Feb. 20, 1868. 



A Governor is a part of a machine by means of which the velocity of the 

 machine is kept nearly uniform, notwithstanding variations in the driving- 

 power or the resistance. 



