On Subtlety

The history of medical subtlety. 332
How medicines are best mixed. 333
Medicine. 313
Medo, an intoxicating drink. See: Intoxicating drink.
Why the bottom of honey is the best. See: The top of oil. It was a common ancient belief that the purest honey settled at the bottom, whereas the purest oil rose to the top.
Why the limbs of certain animals regenerate when cut off. See: Animal limbs.
The statue of Memnon. 319 A famous ancient Egyptian statue that was said to produce a musical sound when struck by the first rays of the morning sun.
Artificial memory of two kinds. 293
Passive memory. 293
Strengthening the memory. 346
How the meridian line is obtained. 310 This refers to finding the true north-south line, essential for sundials and navigation.
The South abounds in gems, the North in metals. 128
Why the South abounds more in gold and gems than the North. See: Gold and gems.
Why metals are generated in mountains. 120
What metals are. 144
It is demonstrated that there are seven metals. 144 Traditional alchemy recognized seven metals corresponding to the seven wandering celestial bodies: Gold, Silver, Mercury, Copper, Iron, Tin, and Lead.
A highly desired question is proposed: whether metals can be transmuted. 147
[This question] is resolved at the end of page 152 and the beginning of 153.
Metals are mostly mixed. 148
All metals are of a watery and thin substance. 149
Testing metals from a tiny sample, as is usually done, is deceptive. 149
What metals consist of. 152
All metals are fatty original: "pinguia"; in Renaissance science, this referred to the presence of an oily or sulfurous principle that allowed for melting. except gold. 153
Ductile metals. See: Harder stones.
In what vessels metals are melted. See: Vessels for melting metals.
The splendor of metals and its cause. 148
The odor of metals. 150
The changing of metals. 154
The friendship of metals. 154 An alchemical term for the "affinity" or chemical attraction between certain substances.
The separation of metals. 155
Why a crust hinders the melting of metals. 322
Many metallic things are under the earth, but few animals. 127
That metallic things are the fruits, leaves, roots, and exhalations of metals. 127 Cardano explores the theory that minerals grow like plants within the earth.
How metallic things lie in mountains. 128
Metallic things mostly lack flowers and fruit. 128
That metallic things abound in a certain place is discovered by fifteen signs. 128
Why all metallic things have either no taste or a bad one, yet a pleasant odor. 130
All metallic things are dissolved in three ways. 130
Almost all metallic things melt better with lead added. 135
Dry metallic things are poison to gold and silver. 137
Artificial metallic things do not retain colors, except black. 143
Which metallic things are transparent and why. 149
How metallic things are turned into water. 155
Metallic vessels. See: Vessels.
Necessary parts for metallic things. 130
Species of metallic things are almost without number. 127
Comparison of metallic things and plants. 129
Common properties of all metallic things. 130
Three uses of artificial metallic things. 144
The discovery of Michael Stifel in arithmetic. 308 Michael Stifel was a significant 16th-century German mathematician known for his work on logarithms and algebra.
Mignol, a type of drink. 207
Demonstrates against Simplicius that the bone of the kite-fish does not attract gold. 128 Simplicius was an ancient commentator on Aristotle; Cardano often disputes ancient "natural magic" claims with empirical observation.
Mines. See: Underground tunnels.
Small things are deformed by the smallest errors. See: Small things.
Minium. 141 A bright red pigment, usually referring to red lead or cinnabar.
Misy, which is Roman vitriol. 135 A sulfate mineral, likely a yellow variety of iron or copper sulfate.
Mixtures consist of only three things: earth, water, and celestial heat. 46
It is shown by eight reasons that all mixtures are alive. 125
All mixtures necessarily retain a certain limit of subtlety. 330
In what way mixture differs from nutrition and generation. 125
Four kinds of mixture. 122
The use of mixture. 332
How the elements are in every mixture. See: Element.
How a mixture contains elements. See: Elements.
Whether any mixture is heavier than earth. 126
Carthusian monks. See: Carthusians.
Coinage can be stripped. 137 referring to a process of removing the outer surface of a coin to extract precious metal.
The highest mountains in the whole world. 66