addressed to Metrodorus; two books of definitions of Neutral Things, addressed also to Metrodorus; seven books of definitions of Things, according to their genera, addressed to Metrodorus; and two books of Definitions, according to other systems, addressed to Metrodorus.
The second set contains, a treatise on Things Similar, in three books, addressed to Aristocles; an essay on Definitions, in seven books, addressed to Metrodorus.
The third set contains, a treatise, in seven books, on the Incorrect Objections made to Definitions, addressed to Laodamas; two books of Probable Arguments bearing on Definitions, addressed to Dioscorides; two books on Species and Genus, addressed to Gorgippides; one book on Divisions; two books on Contraries, addressed to Dionysius; a book of Probable Arguments relating to Divisions, and Genera, and Species; a book on Contraries.
The fourth set contains, a treatise, in seven books, on Etymologies, addressed to Diocles; another, in four books, on the same subject, addressed to the same person.
The fifth set contains, a treatise in two books,