On Subtlety

How smoke is generated. 27
Twofold smoke. 28
The theory of tightrope walkers. 343
Tightrope-walking elephants. See: Elephants.
The dangers of tightrope walkers. 343
The various performances of tightrope walkers. 343
How mushrooms arise. 285
How deadly mushrooms are distinguished. 285
How a rope may be broken with only the hands. 345
The more noble arts of predicting the future. 339
Knowledge of future things is most difficult. See: To man, nothing [is harder].

G

Jet Original: "Gagates," a type of fossilized wood used as a gemstone.. 131
A most difficult passage of Galen explained. 65
Praise of Galen The influential Roman physician and philosopher whose work dominated Western medicine for centuries.. 315
Galeazzo de’ Rossi. See: Breastplates.
Galena Lead ore.. 138
The rooster. 243
The source of the rooster's song. 243
The rooster stone Original: "Galli lapis" or Alectorius, a mythical stone supposed to be found in the gizzards of old roosters.. 161
The animal Garapates. 225
The stone Garatronius. 178
A description of fish sauce Original: "Gari," referring to garum, a fermented condiment used in antiquity.. 281
Clove Original: "Gariophyllum.". 200
The clove-pink flower. 200
Joy. 346
The Geberites Followers of Geber (Jabir ibn Hayyan), the famous Arab alchemist.. See: Hebrews.
What may be called a gem, and what truly is one. 161
A marvelous gem of an uncertain kind. 166
Why gems are useful against the plague. See: Plague.
Why gems reflect an image. 161
Why gems are transparent. 162
The principal gems. 163
How gems can enable a man to foresee the future. 165
How gems show images in dreams. 166
Gems that resist fire. 166
Why all green gems are vulnerable to fire. 167
Why noble gems are rarer than common ones. 169
Soft gems. 170
Why Northern gems are soft. 173
Gems turn into glass with lead. 180
Why true gems are very rare in animals. 181
How false gems may be easily recognized. 193
Gems very finely carved. 317
The kinds of gems. 161
The matrices The host rock or "mother" stone in which a gem is formed. of gems. 162
The proper signs of gems. 162
The manner of the discovery of gems. 162
The defects of gems. 162
The origin of gems. 161
The particular praises of noble gems. 165
No gem is devoid of some notable virtue. 169
How the hardness of gems may be known. 177
The most useful transformation of gems not yet discovered. 180
Three ways of adulterating gems. 178
Foil placed under gems. See: Foil.
Generation. See: Mixing.
The various mourning customs of nations. 270
The Geode of Miseno smells pleasant. 150
The Geode A hollow stone often lined with crystals.. 183
Geometry, the most subtle of sciences. 308
Geometric theorems are found in three ways. 308
The properties of geometric figures. See: Figures.
The German language successfully joins words together, like the Greek language. 255
Giants. 255
Ginger. 200
The marvelous growth of the gums. 269
Gypsum. 191
How ice may be preserved in summer. 288
Ice. See: Fire.
The construction of a sword that cleaves armor. 68
The incredible trade of woad Original: "Glasti," a plant used to produce blue dye.. 214
Clod of earth. See: Earth.
Clay Original: "Glis," often used for "Argilla" or potter's clay.. See: Clay.
Why glory is sought after. 339
Tongue-stone Original: "Glossopetra," fossilized shark teeth believed in the Renaissance to be petrified tongues of snakes or birds.. 192
The dark region of Georgia. 254
Signs of hail. 312
The giving of thanks. 371
How heavy things descend after a strike. 59
Why certain heavy things are rare. See: Dense.