750 



Mr. Geiwaise Le Bas on the 



/w 

 400 



3-30 



3-80 



370 



Alipha 



E The 



Regularities among tie 



i 



\C ttTHERlj 

 igtricaj Corrtgouni 



I -hJ 



3'GO 

 W 10 



It is found that there are at least two influences at 

 work : — 



(a) The Effect o£ the Lengthening of the 

 Hydrocarbon Chain. 



By studying the curve for the symmetrical compounds we 

 find that the constitutive effect depends upon the euhe of the 

 length of chain and the volume of the atoms as measured by 

 V/W upon the square. 



Thus the total correction is 



«-4 n-P 



« (ftl + 5) (2=*. 5=^x0- 



0101 : 



n represents the number of carbon atoms in the com- 

 pound ; 



n — 4 the increase in the number above 4 which are 

 found in 2 H 5 . . C 2 H 5 , the compound first marked 

 on the curve; 



0-0101 is a constant. 



The unsymmetrical compounds follow a similar curve, and 

 by finding the points on the upper curve corresponding to 



