505 (II. 2). Corpus Christi College, Cambridge.
13th century. Poema de virtutibus herbarum macro vulgo adscriptum.
Arundel 283 (I). British Museum.
13th century. Aemilius Macri (Fragment).
Library of Lord Clifden, Lanhydrock, Cornwall.
13th century. Le livre de toutes herbes appele “Circa instans.”
Sloane 1977. British Museum.
13th century. Le livre de toutes herbes appele “Circa instans.”
Sloane 3525. British Museum.
Incipit [liber de simplicibus medicinis ordine alphabetico qui appellatur] “Circa Instans” Platearii.