(442 ) 



cient (i for the lui-tlier {'oursc of the "straiglit" diameter in the 

 neighbourhood ol 7/, for h ('(mstaiil. 

 Iji this wav we liave finallv : 



ri = 1 + 2t + -- t'^ 

 5 



<i' = I - 

 and we find 



and iience : 



13 

 25 



13 

 ?5 



128 1350 



^ 875 17500 



128 1359 



+ ...] 



(7) 



87; 



17500 



128 



,,-(.i4-rf') = l+ -r^-\--~y^.... 



875 



7 = 



hi'-l-V'!')- 1 



1 



64 

 1 to 



(8) 



hy which the (Hi-ection of tiie "straight" diameter in the ideal case 

 is ('omjdetely determined. Hence tiie iimiting value ot the coefficient 

 of direction for 7'/ is =: 0,40, wdiich value uradnally increases a 

 little, as we saw alj-ead\ above (cf. also the figure adjoined to the 

 table). For 1 — in = 0,1 (f has grown to 0,415. 



In the following papei' we shall try lo determine n and A from 

 the rerd e(| nation of state, when we shall see that already the deter- 

 mination of the coefficient a gives rise to great ditficnlties. With 

 regard lo h we may say that it will have to rise from 0,40 to 

 about O.iK). (Argon 0,90; Isopcntane 0,<S9 ; Fliu)rbenzene 0,91: 

 Oxygen 0,81). 



{To he continued) 



Clarens, October 24, 1911. 



Chemistry. — "Su(/ar solutions mid Liun^" . P>y Dr. P. J. H. v. 

 GriNNEKEN. (Communicated by Piof. van Romburgh). 



(Communicated in the meeting of Sept. 30, 1911). 



The solul)ility of lime in saccharose solutions and the phenomena 

 occurring in sugar solutions which have been treated with lime 

 have been many times the subject of investigation. The investigation 

 theii generally had a purely technical jjurpose and the investigators 

 did not really strive to carry out scientific work but rather to explain 

 the phenomena occurring in the sugar industry. That the subject has 

 not as yet been investigated according to the methods placed at 

 disposal by modern physical chemistry may be attributed to the 

 fact that it offers so little chance of success. The difficulties present- 



