THE 

 LONDON, EDINBURGH, and DUBLIN 



PHILOSOPHICAL MAGAZINE 



AND 



JOURNAL OF SCIENCE. 



[FIFTH SERIES.] 



JANUARY 1896. 



I. The Latent Heat of Evaporation of Benzene. By 

 E. H. Griffiths, M.A., F.R.S., Sidney Sussex College, 

 Cambridge, and Miss Dorothy Marshall, B.Sc, Uni- 

 versity College, London*. 



1. TT1HE method of experiment and the nature of the 

 JL apparatus employed have been fully described in 

 previously published papers. Although it appears somewhat 

 presumptuous to assume, on the part of the reader, a knowledge 

 of such communications, it would on the other hand seem 

 redundant to devote many pages to the mere repetition of 

 what has already appeared in print. We therefore propose 

 to give an explanatory statement of the theory and methods 

 employed, but to omit all detailed description of the apparatus. 

 Full references to former communications will be given when 

 necessary, so that all particulars can be ascertained by any 

 who desire them. 



As reference has frequently to be made to the following 

 papers (by E. H. Griffiths) they are, for conveuience, denoted 

 as follows : — 



Paper J. " The Mechanical Equivalent of Heat." Phil. 



Trans, vol. clxxxiv. 1893, A, pp. 361-504. 

 Paper A. u The Influence of Temperature upon the Spe- 

 cific Heat of Aniline/' Phil. Mag. Jan. 1895. 

 Paper W. "The Latent Heat of Evaporation of Water," 



Phil. Trans, vol. clxxxvi. 1895, A, pp. 261-341. 

 * Communicated by the Physical Society : read November 8, 1895. 

 Phil Mag. S. 5. Vol. 41. No, 248. Jan. 1896. B 



