Finish the first chapter.
Finish the second chapter.
Finish the third chapter.
Finish the fourth chapter.
Finish the fifth chapter.
Finish the sixth chapter.
Finish the seventh chapter.
Finish the eighth chapter.
Codex Atlanticus 1478-1482
Codex Atlanticus 1480
Codex Atlanticus 1488-1489
Around the year 1485
Codex Atlanticus 1487-1489
Manuscript B 1487-1489