422 
specific coliesions which are siinple multiples of the constant number 
4.3. For various reasons it seems clear that these relations are only 
apparent. In the first place, the divergence from the constant is in 
many cases considerable. 
Moreover there are errors of experiment [cf. Meybr. Wied. Ann. 
54, 415 ( 1895 ); Lohnstein. ibid. 54, 722 ( 1895 ) etc]. Undef the 
stress of criticism (ibid, 53. 1070 ( 1894 ), 61, 267 ( 1897 )), Quincke 
somewhat modified his views. 
It lias now been found out that the specific cohesion of elements 
is a periodic function of their atomic weights. 
The following data are collected from the works of various investi- 
Name of elements. 
Specific Cohesion. 
Sb 
7.635 
Pb 
8.339 
Br 
3.895 
Cd 
16.84 
F 
25.81 
K 
85.74 
Cu 
14.44 
Na 
52.97 
Pd 
25.26 
P 
4.475 
Pt 
17.88 
Hg 
8.234 
S 
4.28 
Se 
3.42 
Ag 
15.94 
Bi 
8.019 
Zn 
24.05 
Sn 
16.75 
Cl 
4.176 
0 
3.018 
N 
2.541 
