1771 March 18 (Monday). Read various Things which I have partly bought and partly borrowed out of Mr. Medes Library, viz. Vindication of the Revolution in Massachusetts 1689, Advice to the Churches concerning Imposters, Dr. Mathers account of Mr. Samuel May etc., Mr. Nathan Prince of the Constitution and Government of Harvard College. N.B. Began to Sing Mr. Thomas Prince’s Version, of the Psalms, or Revising of the New England Psalm Book. P.M. Mr. Joseph Brigham here with Messages from his Kinsman and from Mr. Smith requesting me to go to Monadnock. At Eve Cornet Brigham here likewise.