1888.] Specific Heats of Gases at constant Volume. 33 



November 22, 1888. 

 Professor G. GL STOKES, D.C.L., President, in the Chair. 



In pursuance of the Statutes, notice was given from the Chair of 

 the ensuing Anniversary Meeting, and the list of Officers and Council 

 nominated for election was read as follows : 



President. Professor George Gabriel Stokes, M.A., D.C.L., LL.D. 

 Treasurer. John Evans, D.C.L., LL.D. 



f Professor Michael Foster, M.A., M,D. 

 secretaries. < mi T .,,_, ,., ,,. T ^^ T 

 1 The Lord Rayleigh, M.A., D.C.L. 



Foreign Secretary. Prof essor Alexander William Williamson, LL.D. 



Other Members of the Council. Professor Henry Edward Armstrong, 

 Ph.D. ; Henry Bowman Brady, F.G.S. ; Charles Baron Clarke, M.A. ; 

 William Huggins, D.C.L. ; John Whitaker Hulke, F.R.C.S.; Pro- 

 fessor John W. Judd, F.G.S. ; Edward Emamiel Klein, M.D. ; Pro- 

 fessor E. Ray Lankester, M.A. ; Professor Herbert McLeod, F.I.C. ; 

 Sir James Paget, Bart., D.C.L. ; William Pole, Mus. Doc. ; William 

 Henry Preece, M.I.C.E. ; Sir Henry E. Roscoe, D.C.L.; Edward 

 John Routh, D.Sc. ; Professor Arthur William Riicker, M.A. ; 

 William James Lloyd Wharton, Capt. R.N". 



The Presents received were laid on the table and thanks ordered 

 for them. 



The following Papers were read : 



I. " On the Specific Heats of Gases at Constant Volume. 

 (Preliminary Note.)" By J. JOLY, M.A., B.E. Communi- 

 cated by Professor G. F. FITZGERALD, F.R.S. Received 

 July 21, 1888. 



I have found it possible to obtain the specific heat of a gas at con- 

 stant volume by means of the steam calorimeter,* the values obtained 

 being, I believe, reliable as close approximations to the true values. 



* " On the Method of Condensation in Calorimetry " (by J. Joly) " Roy. Soc. 

 Proc.,' vol. 41, p. 352; and " Ueber das Dampfcalorimeter " (von R : Bunsen), 

 ' Wiedemann's Annalen,' vol. 31, p. 1. 



VOL. XLV. D 



