116 



DIRECT PROPERTIES OF MOLECULES 



321 



I have deduced similar values from the observations on 

 viscosity of Kundt and Warburg, 1 and also of Puluj, 2 

 and of these I quote the following : 



Winkelmann's 3 observations on diffusion afford a rich 

 material for the calculation of further values. For these 

 I have, as before, made use of the numbers given in 

 Landolt and Bornstein's tables. 



1 Pogg. Ann. 1875, civ. p. 540. Compare 79. 



2 Wien. Sitzungsber. 1878, Ixxviii. Abth. 2, p. 279. 



3 Wiecl Ann. 1884, xxiii. p. 203 ; 1885, xxvi. p. 105. 



