instrumentality. The building and decorations are consumed
unproductively, and Madame Pasta labours and consumes unproductively;
for the building is used and worn out, and Madame Pasta performs,
immediately for the spectators' enjoyment, and without leaving, as a
consequence of the performance, any permanent result possessing
exchangeable value: consequently the epithet unproductive must be
equally applied to the gradual wearing out of the bricks and mortar, the
nightly consumption of the more perishable "properties" of the theatre,
the labour of Madame Pasta in acting, and of the orchestra in playing.
But notwithstanding this, the architect who built the theatre was a
productive labourer; so were the producers of the perishable articles;
so were those who constructed the musical instruments; and so, we must
be permitted to add, were those who instructed the musicians, and all
persons who, by the instructions which they may have given to Madame
Pasta, contributed to the formation of her talent. All these persons
contributed to the enjoyment of the audience in the same way, and that
a remote way, viz., by the production of a _permanent source of
enjoyment_.

The difference between this case, and the case of the cotton spinner
already adverted to, is this. The spinning-jenny, and the skill of the
cotton spinner, are not only the result of productive labour, but are
themselves productively consumed. The musical instrument and the skill
of the musician are equally the result of productive labour, but are
themselves unproductively consumed.

Let us now consider what kinds of labour, and of consumption or
expenditure, will be classed as productive, and what as unproductive,
according to this rule.