Bacon, Roger, 1214?-1294.
Rogerii Bacconis Angli viri eminentissimi Perspectiua : in qua, quae ab aliis fuse traduntur, succincte, neruose & ita pertractantur, vt omnium intellectui facile pateant.
Bacon, Roger, 1214?-1294. Perspectiva.
Optics -- Early works to 1800.
Philosophy of nature -- Early works to 1800.
Combachius, Johannes, 1585-1651.
Bacon, Roger, 1214?-1294. De speculis comburentibus.
Notule de speculis.