[59] For illustration, see Lecture IV., Fig. 97.
[60] See Lecture XIV., p. 167, [Fig. 330.]
[61] See [Fig. 398.]
[62] This, I think, is known to have been the case, and that it was taken down for the sake of reusing the material in St. Peter’s. (G. G. S. 1878).
[63] These excrescent structures are now obliterated, and are chiefly known by drawings of the fifteenth century by Sangallo, preserved in the Barberéni Library. (G. G. S. 1878.)
[64] See [Fig. 422.]
[65] A large part of these were renewed in the fifteenth or sixteenth century. (G. G. S. 1878.)
[66] See [Fig. 430.]
[67] See [Fig. 439.]
[68] See a very interesting paper by Mr. Street, R.A., in the Transactions of the Institute of British Architects. (G. G. S. 1878.)