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ARNO (anc. Arnus)

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Originally appearing in Volume V02, Page 632 of the 1911 Encyclopedia Britannica.
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ARNO (anc. Arnus) , a See also:river of See also:Italy which rises from the See also:Monte Falterona, about 25 M. E.N.E. of See also:Florence, 4265 ft. above the See also:sea. It first runs S.S.E. through a beautiful valley, the Casentino; near See also:Arezzo it turns W., and at Montevarchi N.N.W.; 10 m. below it forces its way through the See also:limestone See also:rock at Incisa and 10 m. farther on, at Pontassieve, it is joined by the See also:Sieve: Thence it runs westward to Florence and through the See also:gorge of Golfolina onwards to See also:Empoli and See also:Pisa, receiving various tributaries in its course, and falls into the sea 71 M. See also:west of Pisa, after a See also:total course of 155 M. In prehistoric times the river ran straight on along the valley of the See also:Chiana and joined the See also:Tiber near See also:Orvieto; and there was a See also:great See also:lake, the See also:north end of which was at Incisa and the See also:south at the lake of See also:Chiusi. The distance from Pisa to the mouth in the See also:time of See also:Strabo was only 22 M. TheSerchio (anc. Auser), which joined the Arno at Pisa in See also:ancient times, now flows into the sea independently. The Arno is navigable for See also:barges as far as Florence; but it is liable to sudden floods, and brings down with it large quantities of See also:earth and stones, so that it requires careful regulation. The most remarkable inundations were those of 1537 and 1740; in the former See also:year the See also:water See also:rose to 8 ft. in the streets of Florence. The valley between Incisa and Arezzo contains accumulations of fossil bones of the See also:deer, See also:elephant, See also:rhinoceros, See also:mastodon, See also:hippopotamus, See also:bear, See also:tiger, &c.

End of Article: ARNO (anc. Arnus)

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