[19] Fam., xxiii., 19 (vol. iii., pp. 237, 238).
[20] Familiares epistolæ.
[21] There are but three hundred and forty-seven in the codices used by Fracassetti. See Let. delle Cos. Fam., v., p. 110.
[22] Castigata, i.e., without any flourishes such as disfigure the manuscripts of the period. See the facsimile of Petrarch's own clear handwriting, p. [238].
[23] The other great classical collections of letters, Pliny's, appears to have been unknown to Petrarch. See, further, p. [230] sq.
[26] Fam., xxiv., 13 (vol. iii., p. 307).
[27] One earlier letter (1326), and a half dozen written later, have found their way into this group.
[28] Fam., xxiv., 13 (vol, iii., p. 306).