Terrestrial instruction globe. Geographical details on the sphere include a table with the course of the winds referred to as 'MOONSOONS' in the Arabian Sea. Two other such tables are situated south of the equator. Variable winds are indicated by arrows. California is drawn as a peninsula, and there is no hypothetical southern continent. Australia is labelled 'NEW HOLLAND', Tasmania is not yet an island and there is a label for 'Dampiers Coast'. There is also a note on Cook's death.

There are six areas with notes on discoveries and accompanying dates. Anson's and those of the voyages of Cook are extensively labelled. Seven oceans are named.

The construction of this magnetic globe is unique. It seems reasonable to suppose that it was designed for teaching purposes at the turn of the 18th century. Around that time there was a great interest in the Earth's magnetic field, prompted, among other things, by the increasing use of iron in ships. The effects of variations in the Earth's magnetic field can be demonstrated by changing the orientation of the magnets inside the terrestrial sphere. An important accessory, being a small compass needle for showing the variation intended to be fitted in the slit of the horizontal tongue, is now missing. For full details about the cartography and construction of this globe please refer to the related publication.