An ornate horizontal woodcut headpiece features a central grotesque mask flanked by symmetrical scrolling foliage and decorative flourishes.

I N D E X

O F C H A P T E R S.

CAP.		PAG.
I.	On the years of the Arabs and the Barbarorum non-Arabs/foreigners; on the names of the months and days; and their discrepancy with one another.	1
II.	On the roundness of the heavens, and the circular motion of all celestial bodies.	7
III.	On the spherical figure of the earth and the water together.	11
IV.	That the sphere of the earth is situated in the middle of the sphere of the heavens; and that its magnitude, in relation to the compass of the whole heavens, is like a mere point.	13
V.	On the two primary motions of the heavens: of which one is the universal motion, from east to west, the cause of day and night; the other, the proper motion of the stars in the zodiacal orbit, from west to east.	15
VI.	The quadrant of the habitable earth is described; and it is summarized what manner of celestial rotation occurs therein, and what variety of days and nights.	19
VII.	On the properties of the parts of the inhabited globe: and on those places where the Sun, having risen, does not set for several months—