Pliny's Natural History (Latin: Naturalis Historia) is a book about the whole of the natural world in Latin by Pliny the Elder, a Roman author and naval commander who died in 79 AD.
It is one of the largest single works to have survived from the Roman Empire to the modern day and purports to cover all ancient knowledge. The work's subject area is thus not limited to what is today understood by natural history; Pliny himself defines his scope as "the natural world, or life". It is encyclopedic in scope, but its structure is not like that of a modern encyclopedia.
The work is divided into 37 books, organised into ten volumes. These cover topics including astronomy, mathematics, geography, ethnography, anthropology, human physiology, zoology, botany, agriculture, horticulture, pharmacology, mining, mineralogy, sculpture, painting, and precious stones.
Pliny's Natural History became a model for later encyclopedias and scholarly works as a result of its breadth of subject matter, its referencing of original authors, and its index. The work is dedicated to the emperor Titus, a son of Pliny's close friend, the emperor Vespasian, in the first year of Titus's reign. It is the only work by Pliny to have survived, and the last that he published. He began it in 77, and had not made a final revision at the time of his death during the AD 79 eruption of Vesuvius. (Source: Wikipedia)
"But these monstrous fishes in the sea, are most to be seen about the middest of summer, and when the days be at the longest with us. For then by the means of whirlewinds, storms, winds, and blustering tempests which come with violence down from the mountains and promontories, the seas are troubled from the very bottom, and turned upside down: whereupon the surging billowes thereof, raise these monsters out of the deep, and roll them up to be seen" ("Natural History" Book IX (II, 2)