Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 eBook

This eBook from the Gutenberg Project consists of approximately 284 pages of information about Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1.

Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 eBook

This eBook from the Gutenberg Project consists of approximately 284 pages of information about Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1.
of a brilliant adamantine lustre, and usually modified by numerous bright faces.  The variety of combinations and habits presented by the crystals is very extensive, nearly two hundred distinct forms being figured by V. von Lang in his monograph of the species; without measurement of the angles the crystals are frequently difficult to decipher.  The hardness is 3 and the specific gravity 6.3.  There are distinct cleavages parallel to the faces of the prism (110) and the basal plane (001), but these are not so well developed as in the isomorphous minerals barytes and celestite.

[Illustration:  Anglesite specimen.]

Anglesite is a mineral of secondary origin, having been formed by the oxidation of galena in the upper parts of mineral lodes where these have been affected by weathering processes.  At Monteponi the crystals encrust cavities in glistening granular galena; and from Leadhills, in Scotland, pseudomorphs of anglesite after galena are known.  At most localities it is found as isolated crystals in the lead-bearing lodes, but at some places, in Australia and Mexico, it occurs as large masses, and is then mined as an ore of lead, of which the pure mineral contains 68%.

ANGLI, ANGLII or ANGLES, a Teutonic people mentioned by Tacitus in his Germania (cap. 40) at the end of the 1st century.  He gives no precise indication of their geographical position, but states that, together with six other tribes, including the Varini (the Warni of later times), they worshipped a goddess named Nerthus, whose sanctuary was situated on “an island in the Ocean.”  Ptolemy in his Geography (ii. 11.  Sec. 15), half a century later, locates them with more precision between the Rhine, or rather perhaps the Ems, and the Elbe, and speaks of them as one of the chief tribes of the interior.  Unfortunately, however, it is clear from a comparison of his map with the evidence furnished by Tacitus and other Roman writers that the indications which he gives cannot be correct.  Owing to the uncertainty of these passages there has been much speculation regarding the original home of the Angli.  One theory, which however has little to recommend it, is that they dwelt in the basin of the Saale (in the neighbourhood of the canton Engilin), from which region the Lex Angliorum et Werinorum hoc est Thuringorum is believed by many to have come.  At the present time the majority of scholars believe that the Angli had lived from the beginning on the coasts of the Baltic, probably in the southern part of the Jutish peninsula.  The evidence for this view is derived partly from English and Danish traditions dealing with persons and events of the 4th century (see below), and partly from the fact that striking affinities to the cult of Nerthus as described by Tacitus are to be found in Scandinavian, especially Swedish and Danish, religion.  Investigations in this subject have rendered it very probable that the island of Nerthus was Sjaelland (Zealand), and it is further

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Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 from Project Gutenberg. Public domain.