As for smaller industries there is a consensus of opinion in the business world that there are practically none promising good returns, and that the only ones that seem to be good are of a parasitic nature, which live like the mice in a granary, owing to their insignificance.
The channel which carries off the surplus wealth for the upbuilding of new industries we can imagine subdividing itself into a many-branched delta, each mouth furnishing the needed supply for each particular industry.
Before there was an over-supply of capital in any one industry the capitalists controlling that particular branch of the delta flowing to their industry were using all efforts to widen and deepen their particular channel. When finally they had received all the capital they wished, and. they had formed their trust, the process was reversed. It was as if they had thrown a dam across the entrance of their delta and diverted their current back into the main stream to be distributed through the other mouths and into other industries.
With this metaphor before you it is easy to see that with the closing of successive mouths by successive trusts so much the greater becomes the supply for the other mouths and so much the sooner does it become imperative that the capitalists in other industries throw across their protective dam. As in a real river, so it is
