M. Vitruvii, viri suae professionis peritissimi, De architectura libri decem, ad Augustum Caesarem accuratiss. conscripti: & nunc primum in Germania qua potuit diligentia excusi, atque hinc inde schema tibus non iniucundis exornati

CHAPTERS OF THE EIGHTH BOOK.

CONCERNING the discovery of water. Chapter I.
Concerning rainwater. Chapter II.
Concerning hot springs and what powers they possess, emerging from various metals, and the nature of various fountains, rivers, and lakes. Chapter III.
Concerning the property of certain places and fountains as well. Chapter IV.
Concerning the testing of water. Chapter V.
Concerning the conveyance and leveling of water, and the instruments for this use. Chapter VI.
In how many ways water may be conducted. Chapter VII.

CHAPTERS OF THE NINTH BOOK.

PLATO’S discovery concerning land measurement. Chapter I.
Concerning the square, a Pythagorean discovery, from the formation of the right-angled triangle. Chapter II.
How a portion of silver mixed with gold in a finished piece may be detected and discerned. Chapter III.
Concerning gnomonic sundial-related principles discovered through the rays of the sun by means of shadow, and the world and planets. Chapter IV.
Concerning the course of the sun through the twelve signs. Chapter V.
Concerning the stars that are from the zodiac toward the north. Chapter VI.
Concerning the stars that are from the zodiac toward the south. Chapter VII.
Concerning the principles of sundials, and the shadows of gnomons at the time of the equinox, in Rome and various other places. Chapter VIII.
Concerning the principle, use, and discovery of sundials, and by whom they were invented. Chapter IX.

CHAPTERS OF THE TENTH BOOK.

CONCERNING what a machine is, and its difference from an instrument, its origin and necessity. Chapter I.
Concerning the traction machines for sacred buildings and public works. Chapter II.
Concerning the various