To raise the dam higher, appears to be out of the question, as it would not only destroy all the wharf and store property of the city, above the dam, but would also destroy so much land as to occasion the damage claims alone, a reason for abandoning the project. He thinks the advantages calculated on by the proposer of the plan, if they could be trebled, would not compensate for the injury to the navigation of the river ;

and after having incurred the expense, we should still be deficient in the primary object of giving to New York a copious and wholesome supply of pure water. He is of opinion, if a bridge could be built across the Hudson, without injury to the trade of this great river, a supply of water might be obtained from the Passaic Falls but, as that, in all pro- ;

bability, will not be done, it appears to him that the only safe resource to be relied on is the Croton, which may be introduced at a less expense than the proposed object of damming the Hudson. The elevated situation of the Croton will allow the artizan to make it applicable and certain to give a copious supply of water without hazard The plan proposed, he says, could not be effected but at an expense of more than four millions of dollars. It would still be insufficient for a permanent water power. It would destroy the navigation, and it would not benefit the shoals near Albany he is of opinion, there- ;