Dedication signed: S. Fermat.

Signatures: [sec.]⁶ ã⁴ ẽ⁴ ĩ⁴ õ⁴ ũ² 2ã⁴ 2ẽ⁴ 2ĩ⁴ 2õ² A-2V⁴ a-f⁴; [sec.]₄ signed [par.]iiij; X₃ signed Xij; a₂ signed Aij.

Engraved title vignette; head- and tail-pieces; decorated initials.

Numbers 335-336 repeated in pagination of 3rd group.

Includes (on H₃r)--the first printed statement of Pierre de Fermat's celebrated "last theorem."

"Claudii Gasparis Bacheti Sebusiani In Diophantum Porismatum liber primus[-tertius]:" p. 37-64 of 2nd group.

"Diophanti Alexandrini De multangulis numeris": p. [1]-48 of last group, including "Claudii Gasparis Bacheti Sebusiani Appendicis ad librum De numeris polygonis. Liber primus[-secundus]" (p. 19-48).

Hook & Norman. Haskell F. Norman Lib., 777

Smith, D.E. Rara arithmetica (4th ed.), p. 348

Smith, D.E. Hist. of math., v. 1, p. 133-134

De Morgan, A. Arithmetical books, p. 46-47

Greek text of Diophantus and Latin translation by Xylander in parallel columns.