Natural History

THE SECOND BOOK CONTAINS:

On the nature of the world and whether it is finite or one, and celestial and terrestrial phenomena. Chapter 1.
On its form. Ch. 2.
On its movement. Ch. 3.
Why it is called "world" original: "mundus". Ch. 4.
On the four elements. Ch. 5.
On the seven planets. Ch. 6.
On the tenth reference to the heaven/sphere. Ch. 7.
On the nature of the wandering stars i.e., planets. Ch. 8.
On the nature of the moon. Ch. 9.
The eclipse of the sun and moon and on night. Ch. 10.
On the magnitude of the stars. Ch. 11.
What each person has discovered in celestial observation. Ch. 12.
On eclipses. Ch. 13.
On the motion of the moon. Ch. 14.
The motion of the wanderers and the canon of the lights i.e., luminary bodies. Ch. 15.
Why the same appear higher at some times and lower at others. Ch. 16.
Universal facts regarding wandering stars. Ch. 17.
The reason that changes their colors. Ch. 18.
The motion of the sun and the reason for the inequality of days. Ch. 19.
Why lightning bolts are assigned to Jupiter. Ch. 20.
The intervals of the stars. Ch. 21.
On the music of the spheres. Ch. 22.
On the geometry of the world. Ch. 23.
On sudden stars. Ch. 24.
On comets and celestial prodigies, their nature, location, and types. Ch. 25.
Hipparchus and stars, with historical examples: torches, lamps, beams, fireballs, and the chasm of the sky. Ch. 26.
On the colors of the sky. Ch. 27.
On the flame of the sky. Ch. 28.
On celestial crowns i.e., halos. Ch. 29.
On sudden circles. Ch. 30.
Multiple suns. Ch. 31.
Multiple moons. Ch. 32.
Light of days at night. Ch. 33.
Burning shields. Ch. 34.
An omen of the sky. Ch. 35.
On the movement of stars. Ch. 36.
On the stars called Castor i.e., St. Elmo's fire. Ch. 37.
On the air. Ch. 38.
On summer storms. Ch. 39.
On the rising of the Dog Star original: "caniculae". Ch. 40.
The force established by the seasons of the year. Ch. 41.
On uncertain seasons. Ch. 42.
On rainstorms. Ch. 43.
Why it rains stones. Ch. 44.
On thunder and lightning. Ch. 45.
By what reason the echo is returned. Ch. 46.

On winds. Ch. 47.
Nature and observations of winds. Ch. 48.
Types of winds. Ch. 49.
On sudden gusts. Ch. 50.
Other prodigious types of storms. Ch. 51.
In which lands rivers do not flow. Ch. 52.
Types and miracles of lightning. Ch. 53.
On observations. Ch. 54.
On calling forth rivers. Ch. 55.
Universal facts regarding lightning. Ch. 56.
What things are not struck by lightning. Ch. 57.
On prodigious rains of milk, blood, flesh, iron, wool, and baked bricks. Ch. 58.
On the clashing of armor and trumpets heard from the sky. Ch. 59.
On stones falling from the sky. Ch. 60.
On the rainbow. Ch. 61.
On hail, snow, frost, mist, and dew. Ch. 62.
On images in the clouds. Ch. 63.
On the properties of the sky in specific places. Ch. 64.
On the nature of the earth. Ch. 65.
On the shape of the earth. Ch. 66.
On the antipodes, whether they exist. Ch. 67.
How water is connected to the earth. Ch. 68.
On the navigation of the sea and rivers. Ch. 69.
What portion of the earth is inhabited. Ch. 70.
That the earth is in the middle of the world. Ch. 71.
On the inequality of the stars and on eclipses, and where and why. Ch. 72.
The reason for daily light on the earth. Ch. 73.
Gnomonics regarding the same matter and the first clock. Ch. 74.
Where and when there are no shadows. Ch. 75.
Where shadows fall twice a year, and where they fall in the opposite direction. Ch. 76.
Where the day is longest, and where it is shortest. Ch. 77.
Likewise on the clock. Ch. 78.
How days are observed. Ch. 79.
Differences between peoples and the reason for them. Ch. 80.
On the movement of the earth. Ch. 81.
On fissures of the earth. Ch. 82.
Signs of future movement. Ch. 83.
Remedies against future movements. Ch. 84.
Earthly portents seen once. Ch. 85.
Miracles of earthquakes. Ch. 86.
In which places the seas have receded. Ch. 87.
The reason for the birth of islands. Ch. 88.
Which islands were born and at what times. Ch. 89.
Which lands the seas have broken through. Ch. 90.
Which islands were joined to the mainland. Ch. 91.
Which were changed by earthquake.