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قراءة كتاب Encyclopaedia Britannica, 11th Edition, "Bulgaria" to "Calgary" Volume 4, Part 4
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Encyclopaedia Britannica, 11th Edition, "Bulgaria" to "Calgary" Volume 4, Part 4
Transcriber's note: | A few typographical errors have been corrected. They appear in the text like this, and the explanation will appear when the mouse pointer is moved over the marked passage. Sections in Greek will yield a transliteration when the pointer is moved over them, and words using diacritic characters in the Latin Extended Additional block, which may not display in some fonts or browsers, will display an unaccented version. Volume and page numbers are displayed in the margin as: v.04 p.0001 |
BULGARIA (continued from part 3)
... the mean interval being 60 m.; the summits are, as a rule, rounded, and the slopes gentle. The culminating points are in the centre of the range: Yumrukchál (7835 ft.), Maragudúk (7808 ft.), and Kadimlía (7464 ft.). The Balkans are known to the people of the country as the Stara Planina or "Old Mountain," the adjective denoting their greater size as compared with that of the adjacent ranges: "Balkán" is not a distinctive term, being applied by the Bulgarians, as well as the Turks, to all mountains. Closely parallel, on the south, are the minor ranges of the Sredna Gora or "Middle Mountains" (highest summit 5167 ft.) and the Karaja Dagh, enclosing respectively the sheltered valleys of Karlovo and Kazanlyk. At its eastern extremity the Balkan chain divides into three ridges, the central terminating in the Black Sea at Cape Eminé ("Haemus"), the northern forming the watershed between the tributaries of the Danube and the rivers falling directly into the Black Sea. The Rhodope, or southern group, is altogether distinct from the Balkans, with which, however, it is connected by the Malka Planina and the Ikhtiman hills, respectively west and east of Sofia; it may be regarded as a continuation of the great Alpine system which traverses the Peninsula from the Dinaric Alps and the Shar Planina on the west to the Shabkhana Dagh near the Aegean coast; its sharper outlines and pine-clad steeps reproduce the scenery of the Alps rather than that of the Balkans. The imposing summit of Musallá (9631 ft.), next to Olympus, the highest in the Peninsula, forms the centre-point of the group; it stands within the Bulgarian frontier at the head of the Mesta valley, on either side of which the Perin Dagh and the Despoto Dagh descend south and south-east respectively towards the Aegean. The chain of Rhodope proper radiates to the east; owing to the retrocession of territory already mentioned, its central ridge no longer completely coincides with the Bulgarian boundary, but two of its principal summits, Sytké (7179 ft.) and Karlyk (6828 ft.), are within the frontier. From Musallá in a westerly direction extends the majestic range of the Rilska Planina, enclosing in a picturesque valley the celebrated monastery of Rila; many summits of this chain attain 7000 ft. Farther west, beyond the Struma valley, is the Osogovska Planina, culminating in Ruyen (7392 ft.). To the north of the Rilska Planina the almost isolated mass of Vitosha (7517 ft.) overhangs Sofia. Snow and ice remain in the sheltered crevices of Rhodope and the Balkans throughout the summer. The fertile slope trending northwards from the Balkans to the Danube is for the most part gradual and broken by hills; the eastern portion known as the Delí Orman, or "Wild Wood," is covered by forest, and thinly inhabited. The abrupt and sometimes precipitous character of the Bulgarian bank of the Danube contrasts with the swampy lowlands and lagoons of the Rumanian side. Northern Bulgaria is watered by the Lom, Ogust, Iskr, Vid, Osem, Yantra and Eastern Lom, all, except the Iskr, rising in the Balkans, and all flowing into the Danube. The channels of these rivers are deeply furrowed and the fall is rapid; irrigation is consequently difficult and navigation impossible. The course of the Iskr is remarkable: rising in the Rilska Planina, the river descends into the basin of Samakov, passing thence through a serpentine defile into the plateau of Sofia, where in ancient times it formed a lake; it now forces its way through the Balkans by the picturesque gorge of Iskretz. Somewhat similarly the Deli, or "Wild," Kamchik breaks the central chain of the Balkans near their eastern extremity and, uniting with the Great Kamchik, falls into the Black Sea. The Maritza, the ancient Hebrus, springs from the slopes of Musallá, and, with its tributaries, the Tunja and Arda, waters the wide plain of Eastern Rumelia. The Struma (ancient and modern Greek Strymon) drains the valley of Kiustendil, and, like the Maritza, flows into the Aegean. The elevated basins of Samakov (lowest altitude 3050 ft.), Trn (2525 ft.), Breznik (2460 ft.), Radomir (2065 ft.), Sofia (1640 ft.), and Kiustendil (1540 ft.), are a peculiar feature of the western highlands.
Geology.—The stratified formation presents a remarkable variety, almost all the systems being exemplified. The Archean, composed of gneiss and crystalline schists, and traversed by eruptive veins, extends over the greater part of the Eastern Rumelian plain, the Rilska Planina, Rhodope, and the adjacent ranges. North of the Balkans it appears only in the neighbourhood of Berkovitza. The other earlier Palaeozoic systems are wanting, but the Carboniferous appears in the western Balkans with a continental facies (Kulm). Here anthracitiferous coal is found in beds of argillite and sandstone. Red sandstone and conglomerate, representing the Permian system, appear especially around the basin of Sofia. Above these, in the western Balkans, are Mesozoic deposits, from the Trias to the upper Jurassic, also occurring in the central part of the range. The Cretaceous system, from the infra-Cretaceous Hauterivien to the Senonian, appears throughout the whole extent of Northern Bulgaria, from the summits of the Balkans to the Danube. Gosau beds are found on the southern declivity of the chain. Flysch, representing both the Cretaceous and Eocene systems, is widely distributed. The Eocene, or older Tertiary, further appears with nummulitic formations on both sides of the eastern Balkans; the Oligocene only near the Black Sea coast at Burgas. Of the Neogene, or younger Tertiary, the Mediterranean, or earlier, stage appears near Pleven (Plevna) in the Leithakalk and Tegel forms, and between Varna and Burgas with beds of spaniodons, as in the Crimea; the Sarmatian stage in the plain of the Danube and in the districts of Silistria and Varna. A rich mammaliferous deposit (Hipparion, Rhinoceros, Dinotherium, Mastodon, &c.) of this period has been found near Mesemvria. Other Neogene strata occupy a more limited space. The Quaternary era is represented by the typical loess, which covers most of the Danubian plain; to its later epochs belong the alluvial deposits of the riparian districts with remains of the Ursus, Equus, &c., found in bone-caverns. Eruptive masses intrude in the Balkans and Sredna Gora, as well as in the Archean formation of the southern
[v.04 p.0774]ranges, presenting granite, syenite, diorite, diabase, quartz-porphyry, melaphyre, liparite, trachyte, andesite, basalt, &c.
Minerals.—The mineral wealth of Bulgaria is considerable, although, with the exception of coal, it remains largely unexploited. The minerals which are commercially valuable include gold (found in small quantities), silver, graphite, galena, pyrite, marcasite, chalcosine, sphalerite, chalcopyrite, bornite, cuprite, hematite, limonite, ochre, chromite, magnetite, azurite, manganese, malachite, gypsum, &c. The combustibles are anthracitiferous coal, coal, "brown coal" and lignite. The lignite mines opened by the government at Pernik in 1891 yielded in 1904 142,000 tons. Coal beds have been discovered at Trevna and elsewhere. Thermal springs, mostly sulphureous, exist in forty-three localities along the southern slope of the Balkans, in Rhodope, and in the districts of Sofia and Kiustendil; maximum temperature at Zaparevo, near Dupnitza, 180.5° (Fahrenheit), at Sofia 118.4°. Many of these are frequented now, as in Roman times, owing to their valuable therapeutic qualities. The mineral springs on the north of the Balkans are, with one exception (Vrshetz, near Berkovitza), cold.
Climate.—The severity of the climate of Bulgaria in comparison with that of other European regions of the same latitude is attributable in part to the number and extent of its mountain ranges, in part to the general configuration of the Balkan Peninsula. Extreme heat in summer and cold in winter, great local contrasts, and rapid transitions of temperature occur here as in the adjoining countries. The local contrasts are remarkable. In the districts extending from the Balkans to the Danube, which are exposed to the bitter north wind, the winter cold is intense, and the river, notwithstanding the volume and rapidity of its current, is frequently frozen over; the temperature has been known to fall to 24° below zero. Owing to the shelter afforded by the Balkans against hot southerly winds, the summer heat in this region is not unbearable; its maximum is 99°. The high tableland of Sofia is generally covered with snow in the winter months; it enjoys, however, a somewhat more equable climate than the northern district, the maximum temperature being 86°, the minimum 2°; the air is bracing, and the summer nights are cool and fresh. In the eastern districts the proximity of the sea moderates the extremes of heat and cold; the sea is occasionally frozen at Varna. The coast-line is exposed to violent north-east winds, and the Black Sea, the πόντος ἄξεινος or "inhospitable sea" of the Greeks, maintains its evil reputation for storms. The sheltered plain of Eastern Rumelia possesses a comparatively warm climate; spring begins six weeks earlier than elsewhere in Bulgaria, and the vegetation is that of southern Europe. In general the Bulgarian winter is short and severe; the spring short, changeable and rainy; the summer hot, but tempered by thunderstorms; the autumn (yasen, "the clear time") magnificently fine and sometimes prolonged into the month of December. The mean temperature is 52°. The climate is healthy, especially in the mountainous districts. Malarial fever prevails in the valley of the Maritza, in the low-lying regions of the Black Sea coast, and even in the upland plain of Sofia, owing to neglect of drainage. The mean annual rainfall is 25-59 in. (Gabrovo, 41-73; Sofia, 27-68; Varna, 18-50).
Fauna.—Few special features are noticeable in the Bulgarian fauna. Bears are still abundant in the higher mountain districts, especially in the Rilska Planina and Rhodope; the Bulgarian bear is small and of brown colour, like that of the Carpathians. Wolves are very numerous, and in winter commit great depredations even in the larger country towns and villages; in hard weather they have been known to approach the outskirts of Sofia. The government offers a reward for the destruction of both these animals. The roe deer is found in all the forests, the red deer is less common; the chamois haunts the higher regions of the Rilska Planina, Rhodope and the Balkans. The jackal (Canis aureus) appears in the district of Burgas; the lynx is said to exist in the Sredna Gora; the wild boar, otter, fox, badger, hare, wild cat, marten, polecat (Foetorius putorius; the rare tiger polecat, Foetorius sarmaticus, is also found), weasel and shrewmouse (Spermophilus citillus) are common. The beaver (Bulg. bebr) appears to have been abundant in certain localities, e.g. Bebrovo, Bebresh, &c., but it is now apparently extinct. Snakes (Coluber natrix and other species), vipers (Vipera berus and V. ammodytes), and land and water tortoises are numerous. The domestic animals are the same as in the other countries of southeastern Europe; the fierce shaggy grey sheep-dog leaves a lasting impression on most travellers in the interior. Fowls, especially turkeys, are everywhere abundant, and great numbers of geese may be seen in the Moslem villages. The ornithology of Bulgaria is especially interesting. Eagles (Aquila imperialis and the rarer Aquila fulva), vultures (Vultur monachus, Gyps fulvus, Neophron percnopterus), owls, kites, and the smaller birds of prey are extraordinarily abundant; singing birds are consequently rare. The lammergeier (Gypaëtus barbatus) is not uncommon. Immense flocks of wild swans, geese, pelicans, herons and other waterfowl haunt the Danube and the lagoons of the Black Sea coast. The cock of the woods (Tetrao urogallus) is found in the Balkan and Rhodope forests, the wild pheasant in the Tunja valley, the bustard (Otis tarda) in the Eastern Rumelian plain. Among the migratory birds are the crane, which hibernates in the Maritza valley, woodcock, snipe and quail; the great spotted cuckoo (Coccystes glandarius) is an occasional visitant. The red starling (Pastor roseus) sometimes appears in large flights. The stork, which is never molested, adds a picturesque feature to the Bulgarian village. Of fresh-water fish, the sturgeon (Acipenser sturio and A. huso), sterlet, salmon (Salmo hucho), and carp are found in the Danube; the mountain streams abound in trout. The Black Sea supplies turbot, mackerel, &c.; dolphins and flying fish may sometimes be seen.
Flora.—In regard to its flora the country may be divided into (1) the northern plain sloping from the Balkans to the Danube, (2) the southern plain between the Balkans and Rhodope, (3) the districts adjoining the Black Sea, (4) the elevated basins of Sofia, Samakov and Kiustendil, (5) the Alpine and sub-Alpine regions of the Balkans and the southern mountain group. In the first-mentioned region the vegetation resembles that of the Russian and Rumanian steppes; in the spring the country is adorned with the flowers of the crocus, orchis, iris, tulip and other bulbous plants, which in summer give way to tall grasses, umbelliferous growths, dianthi, astragali, &c. In the more sheltered district south of the Balkans the richer vegetation recalls that of the neighbourhood of Constantinople and the adjacent parts of Asia Minor. On the Black Sea coast many types of the Crimean, Transcaucasian and even the Mediterranean flora present themselves. The plateaus of Sofia and Samakov furnish specimens of sub-alpine plants, while the vine disappears; the hollow of Kiustendil, owing to its southerly aspect, affords the vegetation of the Macedonian valleys. The flora of the Balkans corresponds with that of the Carpathians; the Rila and Rhodope group is rich in purely indigenous types combined with those of the central European Alps and the mountains of Asia Minor. The Alpine types are often represented by variants: e.g. the Campanula alpina by the Campanula orbelica, the Primula farinosa by the Primula frondosa and P. exigua, the Gentiana germanica by the Gentiana bulgarica, &c. The southern mountain group, in common, perhaps, with the unexplored highlands of Macedonia, presents many isolated types, unknown elsewhere in Europe, and in some cases corresponding with those of the Caucasus. Among the more characteristic genera of the Bulgarian flora are the following:—Centaurea, Cirsium, Linaria, Scrophularia, Verbascum, Dianthus, Silene, Trifolium, Euphorbia, Cytisus,