The expected land attack from Clinton's troops, already ashore on Long Island, was not made. A strong wind had raised the waters of the channel between that island and Sullivan's Island so high that it could not be forded, and suitable boats for the passage were not at hand.[505] A few days later the shattered vessels and the troops left the neighborhood, and Colonel Moultrie had leisure to count the costs of his victory, which was twelve killed and twice as many wounded. The courage of Sergeant Jasper, in replacing on the bastion a flag which had been shot away, became at once a household anecdote.[506] CRITICAL ESSAY ON THE SOURCES OF INFORMATION. THE earliest attempt with any precision to enumerate the various sources of information upon the whole series of military events about Boston during 1775 and 1776 was by Richard Frothingham, in the notes of his _Siege of Boston_ (1849), where, in an appendix, he groups together the principal authorities. Later than this, Barry (_Massachusetts_, iii. ch. 1), Dawson (_Battles_, vol. i.), and others had been full in footnotes; but the next systematized list of sources was printed by Justin Winsor in 1875, in the _Bulletin_ of the Boston Public Library. This last enumeration was somewhat extended in the _Bunker Hill Memorial_, published by the city of Boston,[507] and still more so by the same writer in his _Handbook of the American Revolution_, Boston, 1879. It is condensed in the _Memorial Hist. of Boston_, iii. 117. * * * * * Salem, because of a little alleged pricking of bayonets when Leslie's expedition was harassed there in February, 1775, has sometimes claimed to have witnessed the first shedding of blood in the war. The principal monograph on the subject is C. M. Endicott's _Account of Leslie's retreat at the North Bridge in Salem, on Sunday, Feb. 26, 1775_ (Salem, 1856).[508] Early resistance to British arms, and even bloodshed in the act, had undoubtedly occurred before the affair at Lexington, and writers have cited the mob at Golden Hill,[509] in New York, and the massacre at Westminster, in the New Hampshire Grants, when an armed body of settlers arose against the authority of the king, as asserted in favor of the jurisdiction of New York in March, 1775.[510]