Hydraulicus, or, Improvement of the Mississippi : offering a plan for the reduction of its overflow, and of that of its alluvial tributary streams : the expense arising from the execution of this plan, the apportionment of that expense, and the distribution of it among the different parties who may receive permanent benefits from the effectuation of it : to which is subjoined, a brief enumeration of some of the most important consequences which will result / by H. Harrison.