IQ04\ 



Mills — Molecular Attraction. 



175 



m 



M 



8P _ 

 8T~ 



mix' jy~d 



124860 

 mV ' 



constant, 



the last being- an interesting- confirmation of the law of 

 attraction assumed. 



6. It was shown that at the critical volume 'V of the 

 equation, p = dT — a, becomes identical with the term, 

 10471 fi' 



V% * 



7. The variation of the latent heat of vaporization with 

 the temperature is discussed. 



University of North Carolina, 

 August, 1904. 



ADDENDUM. 



Since this paper was written, a letter has been received 



8 P 



from Dr. Young-, giving- the values of the -«-=- for ethyl ox- 

 ide. The pressures given in the original paper are correct as 



8P 

 are the values of the -ttft below 180° C. The corrected val- 



ues above that temperature are given below, together with the 

 corrected values of the heat vaporization and of /u,'. 



Temp. 



syfs corrected 

 o 1 



L 



L — E, 



/ 



185° 



354.9 



26.18 



22.36 



97.7 



190 



374.1 



19.21 



16.42 



96.4 



192 



382.2 



14.66 



12.52 



93.5 



193 



385.8 



11.17 



9.53 



90.7 



194 



389.8 









194.45 



391.6 









