[Chap. 5]. Arguments of those denying the Earth's motion, and their confutation.
[Chap. 6]. On the cause of the definite time of an entire rotation of the Earth.
[Chap. 7]. On the primary magnetick nature of the Earth, whereby its poles are parted from the poles of the Ecliptick.
[Chap. 8]. On the Præcession of the Æquinoxes, from the magnetick motion of the poles of the Earth, in the Arctick & Antarctick circle of the Zodiack.
[Chap. 9]. On the anomaly of the Præcession of the Æquinoxes, & of the obliquity of the Zodiack.
