"The Gradation of Metals" by Paracelsus, translated by A.E. Waite and edited by Christopher Templesage,  is structured around fourteen "gradations" or methods to promote the transmutation of lesser metals into more noble forms like silver and gold. Paracelsus categorizes these gradations based on the substances used, such as strong waters, oils, and liquids, each intended to achieve different stages of metal perfection.

Paracelsus uses alchemical terms and concepts extensively, detailing complex recipes involving substances like vitriol, alum, salt nitre, antimony, and cinnabar. Each gradation involves specific combinations and processes intended to refine and transmute metals. For example, the first gradation includes distilling ingredients with a strong fire to produce a powerful aqua fortis that can dissolve and transform metals like Luna (silver) and Venus (copper).

The text also contains notes explaining terms and historical contexts, like the significance of antimony in alchemical operations, often related to its perceived properties and how it was used by earlier alchemists such as Basil Valentine.