ght. One of the
grandest known specimens was in the Hope collection of precious stones,
exhibited for many years at the Victoria and Albert Museum. (2) Quartz
cat's-eye. This is the common form of cat's-eye, in which the effect is
due to the inclusion of parallel fibres of asbestos. Like the
chrysoberyl, it is obtained chiefly from Ceylon, but though coming from
the East it is often called "occidental cat's-eye"--a term intended
simply to distinguish it from the finer or "oriental" stone. It is
readily distinguished by its inferior density, its specific gravity
being only 2.65, whilst that of oriental cat's-eye is as high as 3.7. A
greenish fibrous quartz, cut as cat's-eye, occurs at Hof and some other
localities irr Bavaria. (3) Crocidolite cat's-eye, a beautiful golden
brown mineral, with silky fibres, found in Griqualand West, and much
used in recent years as an ornamental stone, sometimes under the name of
"South African cat's-eye." It consists of fibrous quartz, coloured with
oxide of iron, and results from the alteration of crocidolite (q.v.). It
is often distinguished as "tiger's-eye" (or more commonly "tiger-eye"),
whilst a blue variety, less altered, is known as "hawk's-eye." By the
action of hydrochloric acid the colour of tiger's-eye may to a large
extent be removed, and a greyish cat's-eye obtained. (4) Corundum
cat's-eye. In some asteriated corundum (see ASTERIA) the star is
imperfect and may be reduced to a luminous zone, producing an indistinct
cat's-eye effect. According to the colour of the corundum the stone is
known as sapphire cat's-eye, ruby cat's-eye, topaz cat's-eye, &c.
(F. W. R.*)

CATSKILL, a village and the county-seat of Greene county, New York,
U.S.A., on the W. bank of the Hudson river, 33 m. S. of Albany. Pop.
(1890) 4920; (1900) 5484; of whom 657 were foreign-born; (1910) 5206. It
is served by the West Shore railway, by several lines of river
steamboats, and by the Catskill Mountain railway, connecting it with the
popular summer resorts in the Catskill mountains. A ferry connects with
Catskill station (Greendale) on the east side of the Hudson. The village
is in a farming country, and manufactures woollen goods and bricks, but
it is best known as a summer resort, and as the principal gateway to the
beautiful Catskill Mountain region. The _Recorder_, a weekly newspaper,
was established here in 1792 as the _Packet_. The first settler on the
present site of Catskill was Derrick Te