Xxxiv.; Br6ndsted, Den Fikoroniske Cista (1847); Ggrhard, various monographs (1843-1867); Muller, Etrusker, &c., and other works; Ciampi, Dell' Antica toreutica (1815); Von Bibra, Die Bronzen and Kupfer-Legirungen der alten and dltesten Volker (1869); C. Bischoff, Das Kupfer in der vorchristlichen Zeit (1865) Medieval, &c.: Digby Wyatt, Metal-Work of the Middle Ages (1849); Shaw, Ornamental Metal-Work (1836); Drury Fortnum, S.K.M.
Bischoff, Frankfort-on-Main, 1899) and texts, few are satisfactory; some have already been mentioned in § 1; for a full list see Strack's Einleitung, pp. 144-155.
After Bischoff from Strasburger's Lehrbuch der Botanik.) FIG.
The Devonian period, as in Victoria, was marked by a series of granitic intrusions, which altered the older beds on the contact, while the quartz-porphyry dikes, which are intrusive in the Silurian rocks at the Mount Bischoff tin mine, doubtless belong to this period.
The discovery of Mount Bischoff one year later, though it greatly stimulated speculation and induced a large influx of immigrants, did not put a stop to the outflow, for in 1880 the population was still below 115,000.
Tasmania is the largest producer of tin in Australasia, and a very large proportion of the tin hitherto produced has been obtained from alluvial deposits, the lodes, except at Mount Bischoff, having, comparatively speaking, been neglected.
The Mount Bischoff mine, which is worked as an open quarry, is the largest producer of tin, and (with an original capital of £30,000) has paid over two millions sterling in dividends.
The private railways show somewhat better " returns; the Emu Bay and Mount Bischoff line, 103 miles in length, constructed at a cost of £565,365, returned in 1904 about 3.22 per cent., and the Mount Lyell Company's railway, 22 miles long, costing £220,333, returned nearly 6 per cent.
Bischoff (Ber., 1891, 24, p. 1041), K.