Wildest among the fisher-folk may be accounted the Chinese shrimp-catchers. It is the habit of the shrimp to crawl along the bottom in vast armies till it reaches fresh water, when it turns about and crawls back again to the salt. And where the tide ebbs and flows, the Chinese sink great bag-nets to the bottom, with gaping mouths, into which the shrimp crawls and from which it is transferred to th...