Pl. LXXX, No. 2 (MS. B, 23b). A similarly constructed tower probably intended for the same use.
Pl. LXXX, No. 3 (MS. B). Sketches for corner towers with steps for a citadel.
Pl. LXXX, No. 4 (W. XVI). A cupola crowning a corner tower; an interesting example of decorative fortification. In this reproduction of the original pen and ink drawing it appears reversed.
B. Projects for Palaces.
Pl. LXXXI, No. 2 (MS. C. A, 75b; 221a, see No. 748). Project for a royal residence at Amboise in France.
Pl. LXXXII, No. 1 (C. A 308a; 939a). A plan for a somewhat extensive residence, and various details; but there is no text to elucidate it; in courts are written the three names:
Sam cosi giova (St. Mark) (Cosmo) (John), arch mo nino
C. Plans for small castles or Villas.
The three following sketches greatly resemble each other. Pl.
LXXXII, No. 2 (MS. K3 36b; see No. 749)._
_Pl. LXXXII, No. 3 (MS. B 60a; See No. 750).