slack-water navigation

While in the House he championed railroad legislation and crusaded for aid for slack-water navigation to help the coal, timber, and salt industries in his state.

-- Wall street, where a great gilt sign betokened the presence of the head-quarters of the a Columbus River Slack-Water Navigation Company.

By this time, the Conestoga Navigation was already in financial difficulties, and was sold to the Lancaster & Susquehanna Slack-water Navigation Company.

Harry had besieged the New York headquarters of the Columbus River Slack-water Navigation Company with demands, then commands, and finally appeals, but to no purpose; the appropriation did not come; the letters were not even answered.