in this
edition, as they reflected on the Roman Catholics. A more complete edition
was published at Basel in 1580 by Nicholas Cisner. Aventinus, who has been
called the "Bavarian Herodotus," wrote other books of minor importance, and
a complete edition of his works was published at Munich (1881-1886). More
recently a new edition (six vols.) has appeared.

See T. Wiedemann, _Johann Turmair gen. Aventinus_ (Freising, 1858); W.
Dittmar, _Aventin_ (Noerdlingen, 1862); J. von Doellinger, _Aventin und
seine Zeit_ (Munich, 1877); S. Riezler, _Zum Schutze der neuesten Edition
von Aventins Annalen_ (Munich, 1886); F. X. von Wegele, _Aventin_ (Bamberg,
1890).

[v.03 p.0054] AVENTURINE, or AVANTURINE, a variety of quartz containing
spangles of mica or scales of iron-oxide, which confer brilliancy on the
stone. It is found chiefly in the Ural Mountains, and is cut for ornamental
purposes at Ekaterinburg. Some of the Siberian aventurine, like that of the
vase given by Nicholas I. to Sir R. Murchison, in 1843, is a micaceous
iron-stained quartz, of but little beauty. Most aventurine is of reddish
brown or yellow colour, but a green variety, containing scales of fuchsite
or chrome-mica, is also known. This green aventurine, highly valued by the
Chinese, is said to occur in the Bellary district in India.

Aventurine felspar, known also as Sun-stone (_q.v._) is found principally
at Tvedestrand in south Norway, and is a variety of oligoclase enclosing
micaceous scales of haematite. Other kinds of felspar, even orthoclase, may
however also show the aventurine appearance. Both plagioclastic and
orthoclastic aventurine occur at several localities in the United States.

The mineral aventurine takes its name from the well-known aventurine-glass
of Venice. This is a reddish brown glass with gold-like spangles, more
brilliant than most of the natural stone. The story runs that this kind of
glass was originally made accidentally at Murano by a workman, who let some
copper filings fall into the molten "metal," whence the product was called
_avventurino_. From the Murano glass the name passed to the mineral, which
displayed a rather similar appearance.

(F. W. R.*)

AVENUE (the past participle feminine of Fr. _avenir_, to come to), a way of
approach; more particularly, the chief entrance-road to a country house,
with rows of trees on each side; the trees themselves are said to form the
avenue. In modern times the word has been much used as a