Having become intimately acquainted with Dr. Calder when at Northumberland House and Alnwick, Percy intrusted to him the notes he had collected for illustrating the 'Tatler', 'Spectator', and 'Guardian'. These were after-wards used, with additions by Dr. Calder, in the various editions of those works, especially in the six-volume edition of the 'Tatler', published by John Nichols in 1786, where Percy's notes have a P. attached to them, and Dr. Calder's are signed 'Annotator.' The 'Tatler' was annotated fully, and the annotated 'Tatler' has supplied some pieces of information given in the present edition of the 'Spectator'. Percy actually edited two volumes for R. Tonson in 1764, but the work was stopped by the death of the bookseller, and the other six were added to them in 1789. They were slightly annotated, both as regards the number and the value of the notes; but Percy and Calder lived when 'Spectator' traditions were yet fresh, and oral information was accessible as to points of personal allusion or as to the authorship of a few papers or letters which but for them might have remained anonymous. Their notes are those of which the substance has run through all subsequent editions. Little, if anything, was added to them by Bisset or Chalmers; the energies of those editors having been chiefly directed to the preserving or multiplying of corruptions of the text. Percy, when telling Tonson that he had completed two volumes of the 'Spectator', said that he had corrected 'innumerable corruptions' which had then crept in, and could have come only by misprint. Since that time not only have misprints been preserved and multiplied, but punctuation has been deliberately modernized, to the destruction of the freshness of the original style, and editors of another 'understanding age' have also taken upon themselves by many a little touch to correct Addison's style or grammar.