912 Dr. R. D. Kleeman on the Attraction Constant of a 

 being given in the last column of Table III. It will be seen 

 that the agreement with the values of ^ y — is fairly good. 



J E\/m 1 



Table III. 



Substance. 



Tc. 



Sv^. 





(A-20) 

 -«(C+2H). 



M formate (MI t Oj 



487 



604-4 



528 3 



547-5 



564-5 



587-6 



1892 

 24-88 



29 84 

 35-30 



40 7G 

 4022 



25 79 



20 09 

 1770 

 15-51 

 13-85 

 12-71 



24*98 



21-47 

 18-90 

 1645 

 13-94 

 11-43 



\L. hi of type CJIgOo 



CITsO 



C d H,oO 



C 6 H, o 



C-H..0 





Acids. 



The chemical formula Eor tlw acids contained in Table IV. 

 may be written 20+«(0+2H), where a denotes an integer, 

 and is thus the smic as that of the esters. This expression 



T«, 



may be connected with =— > — by an equation similar to 



Table IV. 







Substance. 



Tc. 



T c 

 4S/rn v ^Vwh' 



(A 2 -20) 

 -*(C + 2H). 



Butyric acid, C 4 H 8 2 



OH 

 594-5 

 012 9 



29-84 

 18-92 

 2438 



2047 

 3142 

 25-14 



20-14 

 3122 

 25-08 



Acetic acid, C^H^O.^ 



Propionic acid, C3H 6 2 



.... • 



that obtained in the case of the esters ; that is, we may 

 write 



A ? -(20+«(C+2H))=(A g -20)-«(C+2H)=2^, 



where A 2 is a constant. The values of (A 2 — 20) and 

 (C-f2H) are, however, much larger than the values of the 

 corresponding quantities of the esters. Thus it was found 



