Contents xxxiii 



PAGE 



When the salt is brought together with the hydro- 

 carbon the percentage which is soluble in it is dissolved 

 very quickly: there is nothing already in the hydro- 

 carbon to interfere with it. When the menstruum is a 

 nearly saturated solution of the salt in water the dis- 

 solution of the salt is blocked by finding the available 

 space crowded almost to capacity by molecules of itself. 



Description of Table II 204 



Table II . 206 



This Table illustrates the relation between the dis- 

 placement of the salt in crystal and its apparent dis- 

 placement in saturated solution. 



Table III gives the molecular weights of the salts . 207 

 Table IV gives the specific gravity of each salt of the 

 ennead. It is shown that the specific gravity of the salts 

 is a periodic function of the molecular weight within the 

 ennead ......... 209 



Table V gives similar data regarding the density of 

 the mother-liquors . . . . . .210 



Discussion of these tables . . . .211 



Consideration of saturated solutions as products of 

 substitution . . . . . . . .213 



As a result of these investigations it is shown that 



the crystallisation of the Potassium and Rubidium 



>f the ennead must be hindered by increase of 



ire while that of the Caesium salts must be 



helped by the same agency . 214 



It will be noticed that this paper though read before 



hemical Society of London was not published by 



it. No exception was taken to the paper at the meeting 



and I was surprised when 1 Named that it had been de- 

 cide, i ttafl ol it. On mv asking t<>r an 

 11 I rrrrived untiling p< the 

 that the Council was determined that the 

 uld not he published. I ^ath.-r.-d. h.\\. 



that the paper did not 



(jlllte t onie Up to t! T FC- 



l.hcation m the Transactions of 



