The main body of text is probably translations from two Latin works , De viribus herbarum by a person who calls himself Aemilius Macer .
Is rather Odo Magdunensis , and De gradibus liber by Constantinus Africanus .
The main body of text is probably translations from two Latin works , De viribus herbarum by a person who calls himself Aemilius Macer , but is rather Odo Magdunensis , and De gradibus liber by Constantinus Africanus .