1741.--Oldmixon, in his "History of the British Empire in America" ("The History of New England," as a part of it is called), says, "Charlestown, the mother of Boston, is much more populous than Cambridge, and exceeds it much in respect of trade, being situated between two rivers, Mystic River and Charles River, and parted from Boston only by the latter, over which there is a ferry so well tended that a bridge would not be much more convenient, except in winter, when the ice will neither bear nor suffer a boat to move through it. Though the river is much broader about the town, it is not wider in the ferry passage than the Thames between London and Southwark. The profits of this ferry belong to Harvard College in Cambridge, and are considerable. The town is so large as to take up all the space between the two rivers." In 1763, April, the running of a stage-coach was commenced between Boston and Portsmouth, N.H., once a week,--out on Friday, and return on Tuesday. It is said, that, "owing to the trouble of ferrying the stage and horses over Charles River, they were kept at Charlestown, at the sign of the Three Cranes." The practice with this, and very likely other stage-lines, probably continued until the bridge was built. The memorable night, April 18, 1775, when Paul Revere crossed Charles River, near the ferry, is of course well remembered. During the occupation of Boston Harbor by the British navy, the boats of the ferry were drawn up alongside the men-of-war every night at nine o'clock, and there was no passing after that hour; but it seems that Revere kept a boat of his own at the north end, and employed two men to row him across, "a little to the eastward where the 'Somerset' man-of-war lay." He landed at Charlestown below the ferry, and says, "I told them what was acting, and went to get me a horse," and then pursued his momentous ride to Lexington. Imagine the continuance of this ferry, as the usual means of crossing the river between Boston and Charlestown, for a period of more than one hundred and fifty years! and all this time probably without the use of sails, as the stream at this point was very narrow and the currents very strong, and certainly without the power of steam, now so generally applied to ferries all over the country. There was, no doubt, in the winter season, a good deal of passing on the ice. The Winnisimmet Ferry, for many years prior to the introduction of steam, was operated by the use of large sail-boats for foot-passengers only. It is said that the Indian name of Charles River was Quimobequin, and that on Capt. Smith's map of 1614, it is called Massachusetts; and Hutchinson says, "Prince Charles gave the name of Charles river to what had been before called Massachusetts river." Smith himself says he called it Charles River; still Hutchinson may be right. III. THE BOSTON CORNFIELDS.