the Unit-Stere Theory. 



333 



The above method of calculation can be extended to higher 

 members of the series, with similar results. 



It will be convenient for purposes of comparison to 

 arrange the above results in tabular form. 



V. — Table illustrating the Additive Law. 

 Values of V/W. 



M.P. + ;*XlO. 



12 H 26 . 



C 13 H 2S . 



C 1 ,H 30 . 



0i 5 H 32 . 



2-970 



C 16 H 34 . 







2-971 



C 17 H 36 . 

 2-971 



C 1S H 38- 



2-972 



M.P 



2-970 



2-970 



2-970 



„ +10° ... 



2-997 



2993 



2-994 



.2-997 



3 000 



2-998 



2-999 



„ +20 ... 



3025 



3 020 



3023 



3024 



3027 



3025 



3026 



„ +30 ... 



3-053 



3049 



3051 



3-052 



3054 



3-053 



3-053 



,, +40 ... 



3-081 



3078 



3-081 



3080 



3082 



3081 



3-082 



„ +50 ... 



3-111 



3-107 



3-109 



3-109 



3-111 



3-110 



3-109 



,, +60 ... 



3-141 



3-137 



3-139 



3140 



3-140 



3-138 



3-137 



„ +70 ... 



3-172 



3-168 



3170 



3-169 



3-170 



3-166 



3-166 



„ +80 ... 



3-206 



3-200 



3-201 



3-200 



3-201 







„ +90 ... 



3-240 



3-232 



3-234 











VI 



. — Table illustrating the Law of Additivity. 





T. 



V. of 



C l-t H 30' 



255-4 



262-45 



270-01 



Ratio 

 a. 



V. of Ratio 

 ; C 15 H 3r , 13. 



i V. of Ratio 

 C 1G H 34 . ; y. 



V. of 

 C 17 H 38 . 







309-0 



317-54 



326-31 



Ratio. 



M.P. ... 



„ +30°. 

 „ +60°. 



1 

 1 

 1 



i 273-2 1070 

 280-8 1-070 

 288-94 1-070 



291-2 , 1-140; 

 299 34 1-140 



307-73 1-140 



i i 



1-210 

 1-210 

 1-209 



The volumes of the paraffins are shown by the above table 

 to be additive and to follow the valency law ; for 



86 92 _ 98 111A s 104 



a= 86 = 1 ' /3 = 86 =10/ °' ry= 86 = 1140 ' S = ^tT = 1210 ' 



86, 92, 98, 104, representing the valency numbers of the 

 compounds in question. 

 It is thus concluded 



That the molecular volumes of the complex liquid normal 

 paraffins are subject to additive relations and are proportional 

 to their respective valency numbers at their melting-points also 

 at equal intervals of temperature therefrom. 



Phil. Mag. S. 6. Vol. 14. No. 81. Sept. 1907. 2 A 



