Latvs of Molecular Force. 



23 



Table XV. (continued) . 



Si. 



Cl 4 . 



^ 331 



M/p 112 



(VP/)3 from (9) ... 

 (M 2 Z)*from (14) 66 

 Ratio 



Br 4 . 



260 



426 



124 



70 



7-9 



113 



Ti. 



0l 4 . 



408 

 108 



72 



Br 4 . 

 312 



503 

 142 

 8-3 

 9-2 

 111 



Gl 4 . 

 260 



388 



118 



6-7 

 74 



1-10 



Sn. 



Br* 



303 

 474 

 132 



8-0 

 8-6 

 108 



I*- 



419 



568 

 133 

 97 

 95 

 98 



P. 



CI, 



Br.. 



T 







T ft 



351 



444 



M/p 



86 



93 



(MH)* from (9) .. 

 (M 2 0*from (14).. 



. 60 



7-0 





• .. 





CI. 

 250 

 405 

 82 

 5-3 

 6-3 

 1-19 



As. 



Br 3 . 



295 



493 

 85 

 6-2 

 71 

 115 



419 



677 



104 



8 4 



91 



108 







Sb. 







Cl 3 . 



Br 3 . 



I 3 - 



T 



.. 345 



363 



438 



T& 



.. 496 



549 



693 



M/p 



.. 74 



88 



103 



(M 2 /)* from (9) .... 



.. 6-0 



70 



8-6 



(M 2 ^from (14)... 



.. 6-6 



76 



9-2 





.. 1-10 



1-09 



107 



Bi. 



ci 3 . 



503 

 703 

 69 

 72 

 7'6 

 106 



Br 3 . 



480 



749 



80 

 7-8 

 8-4 

 1-08 



From the row of ratios it appears that the boiling-point 

 method gives results which on the average are 1*08 times 

 larger than those given by the melting-point, an accord which 

 is again surprising, seeing that in an arbitrary manner we 

 assumed for compounds the relation T/jM g = constant, estab- 

 lished experimentally only for the metals : if instead of *044 

 we took *040 for the constant, the agreement between the two 

 methods would become complete for most of the compounds. 

 This agreement proves what was asserted in connexion with 

 equation (lo), that k for these types is inversely proportional 

 to the number of atoms in the molecule. 



Before accumulating any more data it will be well to extract 

 the general results from those just given in Tables XIII., XIV., 



