INTRODUCTORY 
19 
working nevertheless harmoniously, perhaps 
in collaboration, and achieving together results 
that stand. Little serious and sustained re 
flection by men of judgment has been pro 
ductive of results which are wholly or mainly 
ephemeral. 
After John Stuart Mill the progress of 
economics bifurcates. On the one hand the 
analytical method was perfected and on the 
other hand induction and history began to 
play a distinctive part. We shall first notice 
the improvements in analysis ; for it is 
chiefly to the broad results of these that the 
present volume will be devoted. Finally some 
consideration must be given to the claims of 
induction and history. 
Duly to assign credit with regard to the 
discovery and development of new ideas is 
a difficult and thankless task, which will not 
be essayed here. Suffice it to remark that 
among the most original workers in connection 
with the advance of analytical economics 
devons and Léon Walras stand out promin 
ently, and that to Dr. Marshall belongs the 
distinction of having realised the far-reaching 
application of the new ideas, of having refined 
them and brought out unsuspected implica 
tions, and of having presented economic 
phenomena unified for the first time in