Page:The American Cyclopædia (1879) Volume VIII.djvu/507

 HARTZ limestones and sandstones, which are grouped around, and penetrated by, the granites. Vari- ous rocks of the upper secondary, from the grfo bigarre or new red sandstone to the chalk, repose unconformably upon the older forma- tions around their marginal outcrop. The more elevated portions of the district are rough and dreary, with a sterile soil and a cold climate. Numerous streams take their rise in the Hartz mountains. Tributary to the Elbe are the Helme, which flows through the deep and beautiful valley called the Goldene Aue, and the Zorge, on the south ; the Eine, Selke, and Bode, on the east ; and the Holzemme on the north. The Use, which forms several fine cataracts in its course, the Ecker, Radau, and Ocker, on the north, and the Innerste, Sose, and Sieber, on the west, flow int^o the Weser. The valleys, being well watered, are very fertile, and pro- duce abundant pasturage, and large herds of cattle are reared here. This district is also well wooded, and timber forms an important article of export. But the mines, chiefly of lead, silver, copper, zinc, and iron, are the principal source of the wealth of this region. The other minerals found here are sulphur, arsenic, gran- ite, marble, and gypsum ; and in the east are a number of important salt springs. For many centuries the mines have been industriously worked, and the business connected with them gives employment to about 30,000 persons. The mines belong chiefly to the province of Hanover (Prussia) and Brunswick ; the former possessing those at Clausthal and Andreasberg, in the Upper Hartz, and the latter a portion of those in the Rammelsberg near Goslar. Those of the eastern Hartz are in the territory of Anhalt. The Rammelsberg mines were opened about the year 970, those of the Upper Hartz mostly in the 16th and 17th centuries; and the chief towns upon their sites, as those above named and Altenau, Zellerfeld, Lautenthal, Wildemann, and Grund, were founded in con- sequence of the discoveries of the mineral resources beneath the surface. These mining towns (Bergstadte) are entitled to special priv- ileges, and no business is conducted in them but what is connected with mining and metal- lurgy. Clausthal is the headquarters of these operations. The council which has general charge of the mines meets here, and here are a mint and a school of mines, the latter fur- nished with a fine collection of minerals and models of mining and other machinery. The mines of the Upper Hartz belong either to the group at Clausthal or that of Andreasberg. In the former the veins follow several lines of fracture in an E. and W. direction. One passes through the town of Zellerfeld, extending from Wildemann to Clausthal, a distance of 3 m. They produce argentiferous galena, copper py- rites, and blende in a quartzose gangue, inter- mixed with calcareous spar, brown spar, heavy spar, and spathic iron. They are remarkable for spreading out in thin branches through a great breadth of rock, and at Clausthal these HARTZENBUSCH 493 strings are profitably explored throughout a width of 300 ft. The famous drainage level of these mines is noticed in the article ADIT. The mines and city of Andreasberg are situated upon the steep slope of a mountain of argil- laceous and silicious slates. The whole area occupied by the former is hardly a mile square. Rich silver ores are found here in small veins, as the antimonial sulphuret of silver and ruby- red silver of the dark and light varieties. Ar- gentiferous galena is also a product of these mines. At this locality is found the deepest mine in the world. It is upon an argentiferous vein, which has been followed to the depth of more than 2,500 ft. from the surface, the last 800 ft. since about the year 1820. The richest ores are found in courses which extend only about 100 ft. in length on the vein. The best of these was struck at a depth of about 2,160 ft., and has continued highly productive to the greatest depth named. The Rammelsberg mines produce similar ores to those of the Upper Hartz district. On account of the ex- treme hardness of some of the veinstones of these mines, it has been the practice, instead of attempting to drill the rock for blasting, to build a large fire against the face of the vein, and leave this to act upon the ingredients, like the arsenic and sulphur, which may be volatil- ized, and thus cause the mass to be easily attacked and broken down to some extent. Various other ores have been obtained in the Hartz besides those named. Iron mines have been extensively worked; ores of antimony have been produced to some extent, as also those of cobalt and manganese. A small quan- tity of gold has also been found in Anhalt. The rare metal selenium has been extracted from the seleniuret of lead of the same district. The Mansfeld bituminous copper slates are singular ores, of so low a percentage that the copper pyrites disseminated through them is not visible, yet they have been long profitably worked in the Lower Hartz. The annual pro- duction of the Hartz mines, not including that of the Rammelsberg, which also yields 5 Ibs. of gold, is about 40,000 Ibs. of silver, 5,000 to 6,000 tons of lead, 150 tons of copper, and 10,- 000 tons of iron. The population of the Upper and Lower Hartz speak different dialects. Be- sides the Brocken or Blocksberg, which plays an important part in the popular legends and fairy tales of Germany, and which is immortalized in Goethe's "Faust," there are many remark- able localities in the Hartz, as the StauiFen- berg, with the ruins of the castle of Henry the Fowler, the castle of Falkenstein, the Alexis- bad, &c. The Teufelsmtihle, Rosstrappe, and the valley of the Bode are renowned for their fine and peculiar scenery ; and two curious caves, Baumannshohle and Bielshohle, are in- teresting on account of their fossil bones. HARTZENBIISCH, Jnan Engenlo, a Spanish au- thor, born in Madrid. Sept. 6, 1806. His father was a German carpenter. He was educated by the Jesuits and intended for the church, but T