He was directed, after effecting a breach in the walls, to make the dispositions for an assault and to demand a surrender, but not to attempt a storm until it should be dark. To these orders explicit instructions were added not to hazard his party by remaining before Verplanck's after the British should cross Croton river in force. Through some unaccountable negligence in the persons charged with the execution of these orders the battering artillery was not accompanied with suitable ammunition, and the necessary entrenching tools were not brought. These omissions were supplied the next day, but it was then too late to proceed against Verplanck's. On receiving intelligence of the loss of Stony Point and of the danger to which the garrison of Fort Fayette was exposed, Sir Henry Clinton relinquished his views on Connecticut and made a forced march to Dobb's Ferry. Some troops were immediately embarked to pass up the river and a light corps was pushed forward to the Croton. This movement relieved Fort Fayette. The failure of the attempt to obtain possession of Verplanck's Point, leaving that road of communication still closed, diminished the advantages which had been expected to result from the enterprise so much that it was deemed unadvisable to maintain Stony Point. On reconnoitering the ground Washington believed that the place could not be rendered secure with a garrison of less than 1,500 men--a number which could not be spared from the army without weakening it too much for further operations. He determined, therefore, to evacuate Stony Point and retire to the Highlands. As soon as this resolution was executed Clinton repossessed himself of that post, repaired the fortifications, and placed a stronger garrison in it, after which he resumed his former situation at Philipsburg. The two armies watched each other for some time. At length, Clinton, finding himself unable to attack Washington in the strong position he had taken or to draw him from it, and being desirous of transferring the theater of active war to the south, withdrew to New York and was understood to be strengthening the fortifications erected for its defense, as preparatory to the large detachments he intended making to reinforce the southern army. Although this movement was made principally with a view to southern operations, it was in some degree hastened by the opinion that New York required immediate additional protection during the absence of the fleet, which was about to sail for the relief of Penobscot.