We have just taken an oyster boat, with six men on board, and on search, found five British muskets concealed in the boat; the men have been strictly examined, and it appears they came from Virginia, and were bound to Baltimore, and had oysters on board to further their intended purpose, being employed by that infamous tool of Government, Lord Dunmore, as spies, to collect information from and inquire into the situation of your town, and take a view of your fortifications, &c. ー They are all properly confined. ー It is hoped you will keep a good look out, and carefully examine all suspected vessels and men.