﻿292 -Prof. A. 0. Rankine on the Molecular Structure 

 Summary of Results. 

 Table II. 



Viscosity in C.G.S. units X 10-4. 



Sutherland's 



Mean 

 collision area. 

 em. a x'10— 1B . 



15°0C. 



100°'0 C. 



constant. 



o°-oc. 



i 



1-200 



1-554 



1-135 330 



1-06 



In conclusion the author gladly acknowledges the grant 

 for this research, which was made by the Government Grant 

 Committee of the Royal Society, and also wishes to thank 

 Professor Rankine for his continued help and advice. 



Imperial College of 



Science and Technology, S.W. 7. 



1st May, 1922. 



XXVI. On the Molecular Structure of Carbon Oxy sulphide 

 and Carbon Bisulphide. By A. 0. Rankine, D.Sc, 

 Professor of Physics in the Imperial College of Science and 

 Technology*. 



1. FTHHERE are at the present day in the process of 

 JL development several theories of atomic and mole- 

 cular structure which are in many respects discordant. 

 They have, however, at least one feature of general agree- 

 ment — namely, the common view that the atoms of the 

 inert gases occupy unique positions in the various schemes. 

 The distribution of the electrons with respect to the nuclei 

 in these atoms is regarded as having the characteristic of 

 completeness, so that there is displayed no marked tendency 

 to lose electrons or to capture additional ones. Moreover, 

 atoms other than those mentioned are believed to have in 

 varying degrees what may be called deficiencies and 

 redundancies of extra-nuclear electrons, which they endeavour 

 to adjust by entering into suitable combinations with one 

 another ; so that either by the process of give and take, or 

 by common use of the same electrons, con figurations corre- 

 sponding closely to those of the inert atoms are attained bv 

 the individual atoms forming the compound. 



2. These views of chemical combination find their most 



* Communicated by the Author. 





