Sullivan's letter is in effect a defence of himself,[761] and other letters from participants and observers are preserved,[762] as well as journals of actors on the field,[763] and other personal recitals,[764] and narratives in the public press.[765] On the British side we have Howe's despatch[766] of Sept. 3, with the comments and inquiry which it elicited,[767] and the report and journals of Sir George Collier, in command of the fleet.[768] In addition we have a number of personal experiences and accounts of eye-witnesses,[769] as well as statements from the German participants.[770] The circumstances of the battle and retreat have occasioned some controversy, in which Bancroft has been criticised by the grandsons of Gen. Greene[771] and Joseph Reed.[772] Respecting the armies on both sides and their losses, there is ground for dispute. It is claimed that the British had about double the numbers of the Americans, and the losses of killed and wounded were about equal on both sides, though the Americans also lost heavily in prisoners.[773] But on this point see the preceding chapter. Without enumerating at length the treatment of the general histories,[774] and the biographies of participants,[775] the battle of Long Island has had much special local[776] and monographic treatment, particularly at the hands of Field, Johnston, Dawson, and Carrington.[777] On the English side we have contemporary and later examples of historical treatment.[778] It was the first substantial victory for the royal arms, and had little of the disheartening influence which the forcing of the redoubt at Bunker Hill had brought with it. The effect was correspondingly inspiriting to the Tories in America and to the government party in England.[779] * * * * * In transferring the scene across the river to New York, it is best in the first place to trace the topography of the town and island by the maps of the period, and to follow the cartographical records of the military movements during the campaign, before classifying the authorities.