LETTERS AND PAPERS ON PHILOSOPHICAL SUBjects.
PART FIRST; COMPRISING PRIVATE LETTERS TO THE TIME OF
THE AUTHOR'S FIRST MISSION TO ENGLAND. 1725-1757. 1
PART SECOND; COMPRISING LETTERS, PRIVATE AND OFFICIAL,
FROM THE TIME OF THE AUTHOR'S FIRST MISSION TO ENG-
LAND, TO THE BEGINNING OF THE AMERICAN REVOLUTION.
1757-1775.
PART THIRD; COMPRISING LETTERS, PRIVATE AND OFFICIAL,
FROM THE BEGINNING OF THE AMERICAN REVOLUTION, TO
THE END OF THE AUTHOR'S MISSION TO FRANCE.
1785.