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 winters and hot summers; (5) Vosges climate (comprehending Epinal, Mézières and Nancy), having a mean of 48.2° F., with long and severe winters and hot and rainy summers; (6) Rhône climate (experienced by Lyons, Chalon, Mâcon, Grenoble) mean temperature 51.8° F., with cold and wet winters and hot summers, the prevailing winds are north and south; (7) Mediterranean climate, ruling at Valence, Nîmes, Nice and Marseilles, mean temperature, 57.5° F., with mild winters and hot and almost rainless summers.

Flora and Fauna.—The flora of southern France and the Mediterranean is distinct from that of the rest of the country, which does not differ in vegetation from western Europe generally. Evergreens predominate in the south, where grow subtropical plants such as the myrtle, arbutus, laurel, holm-oak, olive and fig; varieties of the same kind are also found on the Atlantic coast (as far north as the Cotentin), where the humidity and mildness of the climate favour their growth. The orange, date-palm and eucalyptus have been acclimatized on the coast of Provence and the Riviera. Other trees of southern France are the cork-oak and the Aleppo and maritime pines. In north and central France the chief trees are the oak, the beech, rare south of the Loire, and the hornbeam; less important varieties are the birch, poplar, ash, elm and walnut. The chestnut covers considerable areas in Périgord, Limousin and Béarn; resinous trees (firs, pines, larches, &c.) form fine forests in the Vosges and Jura.

The indigenous fauna include the bear, now very rare but still found in the Alps and Pyrenees, the wolf, harbouring chiefly in the Cévennes and Vosges, but in continually decreasing areas; the fox, marten, badger, weasel, otter, the beaver in the extreme south of the Rhône valley, and in the Alps the marmot; the red deer and roe deer are preserved in many of the forests, and the wild boar is found in several districts; the chamois and wild goat survive in the Pyrenees and Alps. Hares, rabbits and squirrels are common. Among birds of prey may be mentioned the eagle and various species of hawk, and among game-birds the partridge and pheasant. The reptiles include the ringed-snake, slow-worm, viper and lizard.

Geology.—Many years ago it was pointed out by Élíe de Beaumont and Dufrénoy that the Jurassic rocks of France form upon the map an incomplete figure of 8. Within the northern circle of the 8 lie the Mesozoic and Tertiary beds of the Paris basin, dipping inwards; within the southern circle lie the ancient rocks of the Central Plateau, from which the later beds dip outwards. Outside the northern circle lie on the west the folded Palaeozoic rocks of Brittany, and on the north the Palaeozoic massif of the Ardennes. Outside the southern circle lie on the west the Mesozoic and Tertiary beds of the basin of the Garonne, with the Pyrenees beyond, and on the east the Mesozoic and Tertiary beds of the valley of the Rhône, with the Alps beyond.

In the geological history of France there have been two great periods of folding since Archean times. The first of these occurred towards the close of the Palaeozoic era, when a great mountain system was raised in the north running approximately from E. to W., and another chain arose in the south, running from S.W. to N.E. Of the former the remnants are now seen in Brittany and the Ardennes; of the latter the Cévennes and the Montagne Noire are the last traces visible on the surface. The second great folding took place in Tertiary times, and to it was due the final elevation of the Jura and the Western Alps and of the Pyrenees. No great mountain chain was ever raised by a single effort, and folding went on to some extent in other periods besides those mentioned. There were, moreover, other and broader oscillations which raised or lowered extensive areas without much crumpling of the strata, and to these are due some of the most important breaks in the geological series.

The oldest rocks, the gneisses and schists of the Archean period, form nearly the whole of the Central Plateau, and are also exposed in the axes of the folds in Brittany. The Central Plateau has probably been a land mass ever since this period, but the rest of the country was flooded by the Palaeozoic sea. The earlier deposits of that sea now rise to the surface in Brittany, the Ardennes, the Montagne Noire and the Cévennes, and in all these regions they are intensely folded. Towards the close of the Palaeozoic era France had become a part of a great continent; in the north the Coal Measures of the Boulonnais and the Nord were laid down in direct connexion with those of Belgium and England, while in the Central Plateau the Coal Measures were deposited in isolated and scattered basins. The Permian and Triassic deposits were also, for the most part, of continental origin; but with the formation of the Rhaetic beds the sea again began to spread, and throughout the greater part of the Jurassic period it covered nearly the whole of the country except the Central Plateau, Brittany and the Ardennes. Towards the end of the period, however, during the deposition of the Portlandian beds, the sea again retreated, and in the early part of the Cretaceous period was limited (in France) to the catchment basins of the Saône and Rhône—in the Paris basin the contemporaneous deposits were chiefly estuarine and were confined to the northern and eastern rim. Beginning with the Aptian and Albian the sea again gradually spread over the country and attained its maximum in the early part of the Senonian epoch, when once more the ancient massifs of the Central Plateau, Brittany and the Ardennes, alone rose above the waves. There was still, however, a well-marked difference between the deposits of the northern and the southern parts of France, the former consisting of chalk, as in England, and the latter of sandstones and limestones with Hippurites. During the later part of the Cretaceous period the sea gradually retreated and left the whole country dry.

During the Tertiary period arms of the sea spread into France—in the Paris basin from the north, in the basins of the Loire and the Garonne from the west, and in the Rhône area from the south. The changes, however, were too numerous and complex to be dealt with here.



In France, as in Great Britain, volcanic eruptions occurred during several of the Palaeozoic periods, but during the Mesozoic era the country was free from outbursts, except in the regions of the Alps and Pyrenees. In Tertiary times the Central Plateau was the theatre of great volcanic activity from the Miocene to the Pleistocene periods, and many of the volcanoes remain as nearly perfect cones to the present day. The rocks are mainly basalts and andesites, together with trachytes and phonolites, and some of the basaltic flows are of enormous extent.

On the geology of France see the classic Explication de la carte géologique de la France (Paris, vol. i. 1841, vol. ii. 1848), by Dufrénoy and Élie de Beaumont; a more modern account, with full references, is given by A. de Lapparent, Traité de géologie (Paris, 1906).

Population.

The French nation is formed of many different elements. Iberian influence in the south-west, Ligurian on the shores of the Mediterranean, Germanic immigrations from east of the Rhine and Scandinavian immigrations in the north-west have tended to produce ethnographical diversities which ease of intercommunication and other modern conditions have failed to obliterate. The so-called Celtic type, exemplified by individuals of rather less than average height, brown-haired and brachycephalic, is the fundamental element in the nation and peoples the region between the Seine and the Garonne; in southern France a different type, dolichocephalic, short and with black hair and eyes, predominates. The tall, fair and blue-eyed individuals who are found to the north-east of the Seine and in Normandy appear to be nearer in race to the Scandinavian and Germanic invaders; a tall and darker type with long faces and aquiline noses occurs in some parts of Franche-Comté and Champagne, the Vosges and the Perche. From the Celts has been derived the gay, brilliant and adventurous temperament easily moved to extremes of enthusiasm and depression, which