Fixatio is making that which flies in the fire to endure the fire.
Flagæ are spirits which know the occult secrets of men.
Flos cheiri is the essence of Gold.
Flos sectarum Croe is the flower of Nutmeg, or as some will, of Saffron.
Folia daure are leaves of Gold.
Fons philosophorum is Balneum Maris.
Formæ rerum are called the influences of celestiall bodies, which inferiour bodies receive from them, or they are the vertues of any thing.
Formicæ are little impostemes like warts.
Fugile is an aposteme in the eares.
Fuligo Metallorum is sometimes called Arsenicke, and sometimes it is taken for Mercury.