While in this neighborhood, Howe was reinforced by a second division of Hessians under General Knyphausen, and a regiment of Waldeckers, both of which had recently arrived in New York. He was joined, also, by the whole of the seventeenth light dragoons, and a part of the sixteenth, which had arrived on the 3d instant from Ireland, with Lieutenant-colonel (afterwards Earl) Harcourt. Some of their horses had been brought with them across the sea, others had been procured since their arrival. The Americans at first regarded these troopers with great dread. Washington, therefore, took pains to convince them, that in a rough, broken country, like the present, full of stone fences, no troops were so inefficient as cavalry. They could be waylaid and picked off by sharp shooters from behind walls and thickets, while they could not leave the road to pursue their covert foe. Further to inspirit them against this new enemy, he proclaimed, in general orders, a reward of one hundred dollars for every trooper brought in with his horse and accoutrements, and so on, in proportion to the completeness of the capture. On the 25th, about two o’clock in the afternoon, intelligence was brought to head-quarters that three or four detachments of the enemy were on the march, within four miles of the camp, and the main army following in columns. The drums beat to arms; the men were ordered to their posts; an attack was expected. The day passed away, however, without any demonstration of the enemy. Howe detached none of his force on lateral expeditions, evidently meditating a general engagement. To prepare for it, Washington drew all his troops from the posts along the Bronx into the fortified camp at White Plains. Here every thing remained quiet but expectant, throughout the 26th. In the morning of the 27th, which was Sunday, the heavy booming of cannon was heard from a distance, seemingly in the direction of Fort Washington. Scouts galloped off to gain intelligence. We will anticipate their report. Two of the British frigates, at seven o’clock in the morning, had moved up the Hudson, and come to anchor near Bourdett’s Ferry, below the Morris House, Washington’s old head-quarters, apparently with the intention of stopping the ferry, and cutting off the communication between Fort Lee and Fort Washington. At the same time, troops made their appearance on Harlem Plains, where Lord Percy held command. Colonel Morgan immediately manned the lines with troops from the garrison of Fort Washington. The ships opened a fire to enfilade and dislodge them. A barbette battery on the cliffs of the Jersey shore, left of the ferry, fired down upon the frigate, but with little effect. Colonel Magaw got down an eighteen-pounder to the lines near the Morris House, and fired fifty or sixty rounds, two balls at a time. Two eighteen-pounders were likewise brought down from Fort Lee, and planted opposite the ships. By the fire from both shores they were hulled repeatedly.