In 1649 he published, through
L. Elzevir of Amsterdam, his
Descriptio Regni Japoniae. In this was included a translation into
Latin of part of
Jodocus Schouten's account of
Siam (
Appendix de religione Siamensium, ex Descriptione Belgica Iodoci Schoutenii), and chapters on the religions and customs of various peoples. Next year (1650) appeared, also through Elzevir, the work by which he is best known, his
Geographia Generalis, in which he endeavored to lay down the general principles of the subject on a wide scientific basis, according to the knowledge of his day. Varenius followed the
Sphaera mundi (1620) of
Giuseppe Biancani, though he also introduced ideas that had come into thinking during the intervening decades. The work is divided into (1) absolute geography, (2) relative geography and (3) comparative geography. The first investigates mathematical facts relating to the earth as a whole, its figure, dimensions, motions, their measurement, etc. The second part considers the earth as affected by the sun and stars,
climates,
seasons, the difference of apparent time at different places, variations in the length of the day, etc. The third part treats briefly the actual divisions of the surface of the earth, their relative positions, globe and map-construction,
longitude, navigation, etc. Varenius, with the materials at his command, dealt with the subject of geography in a truly philosophic spirit; and his work long held its position as the best treatise in existence on scientific and comparative geography. The work went through many editions.
Sir Isaac Newton introduced several important improvements into the
Cambridge edition of 1672; in 1715
James Jurin issued another Cambridge edition with a valuable appendix; in 1733 the whole work was translated into
English by Dugdale; and in 1736 Dugdale's second edition was revised by Shaw. In 1716 an
Italian edition appeared at
Naples; in 1750 a Dutch translation followed; in 1751 Osman b. Abdulemennan translated it into Turkish; and in 1755 a
French version, from Shaw's edition, came out at
Paris. Among later geographers
d'Anville and
Alexander von Humboldt especially drew attention to Varen's genius and services to science. ==Editions==