We are obliged to Professor Felton, of Cambridge, for correcting an error in our first volume in regard to Washington’s head-quarters, and for some particulars concerning a house, associated with the history and literature of our country. The house assigned to Washington for head-quarters, was that of the president of the Provincial Congress, not of the University. It had been one of those tory mansions noticed by the Baroness Reidesel, in her mention of Cambridge. “Seven families, who were connected by relationship, or lived in great intimacy, had here farms, gardens, and splendid mansions, and not far off, orchards; and the buildings were at a quarter of a mile distant from each other. The owners had been in the habit of assembling every afternoon in one or other of these houses, and of diverting themselves with music or dancing; and lived in affluence, in good humor, and without care, until this unfortunate war dispersed them, and transformed all these houses into solitary abodes.” The house in question was confiscated by Government. It stood on the Watertown road, about half a mile west of the college, and has long been known as the Cragie house, from the name of Andrew Cragie, a wealthy gentleman, who purchased it after the war, and revived its former hospitality. He is said to have acquired great influence among the leading members of the “great and general court,” by dint of jovial dinners. He died long ago, but his widow survived until within fifteen years. She was a woman of much talent and singularity. She refused to have the canker worms destroyed, when they were making sad ravages among the beautiful trees on the lawn before the house. “We are all worms,” said she, “and they have as good a right here as I have.” The consequence was that more than half of the trees perished. The Cragie House is associated with American literature through some of its subsequent occupants. Mr. Edward Everett resided in it the first year or two after his marriage. Later, Mr. Jared Sparks, during part of the time that he was preparing his collection of Washington’s writings; editing a volume or two of his letters in the very room from which they were written. Next came Mr. Worcester, author of the pugnacious dictionary, and of many excellent books, and lastly Longfellow, the poet, who, having married the heroine of Hyperion, purchased the house of the heirs of Mr. Cragie and refitted it.