[Chap. 8]. Diagram of the rotation of a magnetick needle, indicating magnetical declination in all latitudes, and from the rotation and declination, the latitude itself.
[Chap. 9]. Demonstration of direction, or of variation from the true direction, at the same time with declination, by means of only a single motion in water, due to the disposing and rotating virtue.
[Chap. 10]. On the variation of the declination.
[Chap. 11]. On the essential magnetick activity sphærically effused.
[Chap. 12]. Magnetick force is animate, or imitates life; and in many things surpasses human life, while this is bound up in the organick body.
Book 6.
[Chap. 1]. On the globe of the earth, the great magnet.
[Chap. 2]. The Magnetick axis of the Earth persists invariable.
[Chap. 3]. On the magnetick diurnal revolution of the Earth's globe, as a probable assertion against the time-honoured opinion of a Primum Mobile.
[Chap. 4]. That the Earth moves circularly.