Villalba, Epidemiología española (Madrid, 1803)

A Spanish army surgeon's chronological history of every plague, contagion, epidemic and epizootic recorded in Spain from the arrival of the Carthaginians to 1801, printed at Madrid in two volumes. It is the book that put the word "epidemiología" on a title page in a modern sense — and it names the older Sardinian tract that had used it first. Its American pages record both the smallpox Spain carried to Mexico and the yellow fever the Indies sent back to Cádiz.