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An intricate allegorical engraving serves as a frontispiece. At the top, a divine hand emerges from a bank of clouds, holding a chain made of linked rings that forms a large circle encompassing the central figures. Flanking the hand are two arcs of stars, with a radiant sun in the upper left and a crescent moon in the upper right.
In the center of the composition, a winged angel or personification sits behind an open book. The figure holds a terrestrial globe in their right hand and a pair of balanced scales in their left.
Three circular medallions are integrated into the chain:
1. On the left, a magnetic compass needle.
2. On the right, a palm tree being weighed down by a stone, representing resilience.
3. At the bottom, a rooster and a leaping stag, symbols of natural sympathy and attraction.
The bottom of the page features three natural philosophy diagrams:
The text on the open book translates to: "The Magnetic Kingdom of Nature, disposed in a triple Magnet: Inanimate, Animate, and Sensitive."