In advertisement the intellectual process can be watched apart from its ethical implications, and advertisement and party politics are becoming more and more closely assimilated in method.

The political poster is placed side by side with the trade or theatrical poster on the hoardings, it is drawn by the same artist and follows the same empirical rules of art.

Let us suppose therefore that a financier thinks that there is an opening for a large advertising campaign in connection, say, with the tea trade.

The actual tea-leaves in the world are as varied and unstable as the actual political opinions of mankind.

Every leaf in every tea-garden is different from every other leaf, and a week of damp weather may change the whole stock in any warehouse.