CHAPTER VI. 
ON MEASURES OF VALUE. 
WE now come to the consideration of a sub- 
ject which has made a conspicuous figure in 
the writings of political economists, and than 
which, none perhaps has been a greater source 
of error and confusion; I mean the measure- 
ment of value. 
Our firstinquiry must therefore be directed to 
the signification of the term. The analogies 
suggested by the word measure seem to have 
bewildered almost every author who has touched 
on the subject. It has been taken for granted 
that we measure value as we measure exten- 
sion, or ascertain weight ; and it has been con- 
sequently imagined, that to perform the opera-