1897 - 98 .] Dr W. Peddie on Torsional Oscillations of Wires. 215 
The general relation between torsion and set is also dis- 
■ cussed. 
It is not to be supposed that good agreement of the results of 
theory with the results of experiment necessarily constitutes a 
proof of the particular theory. The aim in the paper is rather to 
show how completely the general action of imperfectly elastic 
materials may be accounted for upon simple and reasonable views 
(regarding molecular statistics. 
