( 297 ) 



cators led by other considerations. Tims we may say tluit die values 

 of ,i and (p, wliich we originally calculated tVom ƒ = 7 and n i= 0,265 

 are also rever.'^ehj able, to reduce y/j :/>/,• from 3 to 2,1, /'from 4 to 7, 

 and n from 0,o75 to 0,2(55 . The ordinary theory of the apparent 

 diminution with the coefiicients h, ,i, etc. in the expression 



h — h,, { 1 — «- -1- ii| -■'- \ — etc. J has always failed to do this, (see also 



Tkylek, 1901, "Sur I'mtluence des corrections etc.", [>. J — 10, spe- 

 cially p. 10 at the top). 



If in formula (7) a and hi- are made to refer to sim|)le molecular 

 quantities, the second member has to be multiplied by the factor 

 1 -\- x {=: v), and we get : 



l^.r 8 a n' {3m'~2n) 



RT, 



l+,7;i?27 hk 



-. ■.. ^ , - .. 8 « . /*"! 7 



bo n we put = /j the tactor oi — = — , we tind lor ,/; =: 1 , as — = — : 



2 7 bj. ^fi 3 



._ 2 /7>^^3 X (1,107)^ — 2 X 0,969 



1,955 VSy (1,107)=* 



hence 



49 1,740 



ƒ, — 1,023 X — X = 1,004. 



^64-^^,357 



This is in perfect accordance with v. d. Waals' ol)servation, that 



— even if ^'/.- := 2,1 /;^: instead of 36^ — 111). yet becomes again 



8a. 

 = — -- with a high degree of approximation. 



Further we have, according to (8): 



_ 1 a (3w^ — 2«)'^ (4w— 3m) 



'''' ~ 27 hi} m' ' 



1 a 

 and thus the factor of becomes: 



27 6^:^ 



(l,740y^ X 0.5536 1,676 



A. = — ^— ^ — ^ = 1,007. 



1,226 X 1,357 1,664 -^ 



1 a 

 Here too it appeai-s once more, that /;/, remains =i ^_ ^ appi'oxi- 



mately. 



Clanms, Aug. 22 1911. (To be continued). 



