Paper proposing a method to eradicate the grass worm by using pigs, founded on experiments made by the author in Småland ten years before (see ff. 2v and 3), later experiments around Arboga in 'Vermland' (Värmland) in 1773 (Arvid H. Uggla's date, as signaled on the folder), and lately confirmed both in Hammarby and on Major Count Mauritz Posse 's (1712-1787) estate.
Fol. 8v: draft of a letter to 'Herr Grefven', a Count, expressing willingness to design a hot-house for him.