THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Yol. XII. (I.S.), No. 31. JUIE, 1910. 



THE VAPOUR-PRESSURES, SPECIFIC VOLUMES, 



HEATS OF VAPORISATION, 



AND CRITICAL CONSTANTS OF THIRTY 



PURE SUBSTANCES. 



BY 



SYDNEY YOUNG, D.Sc, F.R.S. 



> Ahsoflian Insfft,,. 



TRINITY COLLEGE, DUBLIN. / C''*' * 



MOV 26 1910 

 A 



[A ufliors alone are responsible for all opinions expressed in their Communicaiions.'] 



DUBLIN : 



PUBLISHED BY THE EOYAL DUBLIN SOCIETY, 



LEIXSTER HOUSE, DUBLIN. 



WILLIAMS AND NORGATE, 



14, HENRIETTA STREET, COVENT GARDEN, LONDON, "ff.G. 



I9I0. 



Price Three Shillings. 



