...rking Providence in describing Charlestown, tells of the pleasant and navigable river of Mistick, using the name that Governor Winthrop wrote in his diary under date of June 17, 1630, We went up Mystic k River about six miles. Dudley, in his letter to the Countess of Lincoln on March 28, 1631, tells of settlers at Watertown, on the Charles river, and some of us upon Mistick, which we call...