CHAPTER I

ARISTOTLE. _Problems._ _On Dreams._

EUCLID. _The Elements of Geometrie_ translated by H. Billingsley.

London, 1570.

_La Prospettiva di Euclide._ Florence, 1573.

LUCRETIUS, _De Rerum Natura._

PTOLEMY (CLAUDIUS PTOLEMAEUS). _Ptolemaei Mathematicae._

Wittenberg, 1549.

_Almagest._ Edited by J. Baptiste Ricciolus, S. J. 1651.

ALHAZEN. _Opticae Thesaurus Alhazeni Arabis._

Basel, 1572.