Autograph without title or date.
Commences with a 6-pages survey 'Terrae. Ordo 1. Primogeniae simplices etc. - 2. Lapides. - 3. Minerae.-Follilia.'
Followed by a more detailed description concluding with 'Cuprum'.
The arrangement is related to J G Wallerius's "Mineralogia" (1747) but the classification is slightly different in the orders and the place of genera within orders. Possibly represents a reworking by Linnaeus of Wallerius's arrangement.