The Sum of Perfection

On the observation of the Planets in the work of Alchemy. Chap. 6
In alchemy, planets were directly associated with specific metals: Sol (Gold), Luna (Silver), Venus (Copper), etc. The timing of operations often depended on astrological alignments.
On the exposition of the Three Words. Chap. 7
On the degrees of fire. Chap. 8.
Alchemists used different "degrees" or intensities of heat, ranging from the gentle warmth of a "water bath" (balneum Mariae) to the intense heat of a "blast furnace."

Avicenna’s On the solidification and bonding of stones. Chap. 1.
original: "Auicennæ De Lapidum congelatione & conglutinatione". Avicenna is the Latinized name of Ibn Sina (c. 980–1037), a Persian polymath. This specific text was highly influential in medieval geology and chemistry.
On the four species of mineral bodies. Chap. 3.

An interpretation of a certain Letter, which is circulated under the name of Alexander, King of the Macedonians, most sharply declaring to the wise the hidden composition of the philosophical Stone.
It was common in the Middle Ages to attribute alchemical secrets to legendary historical figures like Alexander the Great to lend the text authority.

A small work by an unknown author, metaphorically describing the secrets of the philosophical Stone.

Merlin’s allegory, perfectly containing the deepest secret of the philosophical Stone.
original: "Merlini allegoria". This refers to the legendary wizard Merlin; alchemical tradition often reclaimed him as a master of the "hermetic" arts.

A Fragment of Rachaidibi, Veradianus, Rodianus, and Kanide, philosophers of the King of the Persians, most sharply conversing on the matter of the philosophical Stone.
These names represent Latinized versions of Arabic or Persian authorities. Rachaidibi is often associated with Khalid ibn Yazid.