Rockford

4016

Rock Wren

tured products are knit goods, agricultural
implements, machine tools, foundry prod-
ucts, gas stoves, pianos. Rockford is the seat
of Rockford College; p.84,637.

Rockford College, a non-sectarian insti-
tution for the higher education of women,
organi2ed at Rockford, 111., in 1849. A col-
legiate course was added to the seminary
course in 1882, and in 1892 the latter was
discontinued, and the name of the institution
was changed to Rockford College for Women.

Rockhili, William Woodville (1854-
1914), American diplomat, was born in Phil-
adelphia. In 1897-9 he was minister to
Greece, Roumania, and Serbia. He was ap-
pointed special commissioner to China in
1900, and in 1901 represented the United
States in the Congress at Peking for the set-
tlement of the Boxer troubles. He was direc-
tor of the International Bureau of American
Republics from 1899 to 1905. In 1905 he
was appointed minister to China; in 1909,
Ambassador to Russia; and in 1911, Ambas-
sador to Turkey.

Rockingham, Charles Watson-Went-
worth, Second Marquis of (1730-82), British
prime minister. He became premier (1765),
but court influence and the repeal of the
Stamp Act, which won him favor with the
American colonies, caused his dismissal in
favor of Pitt (1766). He vigorously opposed
Lord North's disastrous policy with regard
to the American colonies, and on the latter's
overthrow (1782) formed his second min-
istry.

Rocking Stones, masses of rock poised
on a projecting corner so delicately that a
slight force is sufficient to set them rocking.
They are numerous in Yorkshire, Derby-
shire, Cornwall and Wales. The famous Logan
Rock near Land's End in Cornwall is com-
puted to weigh over 70 tons. The largest
rocking stone in the world is one at Tandil
in Argentina, which weighs over 700 tons.

Rock Island, city, Illinois, on the Missis-
sippi River. A dam constructed by the Fed-
eral Government affords abundant water
power for manufacturing and for the exten-
sive shops of the United States Arsenal, the
largest manufacturing arsenal in the country,
which occupies an island in the river; p.
42,775-

Rocklin? (Motelta), a genus of North At-
lantic fish belonging to the cod family,

Rockne, Knute (1888-1931), famous Am-
erican football coach, was born in Voss, Nor-
way. After working as a railroad brakeman
and mail clerk, he saved enough to enter

Notre Dame University, where he became in-
structor in chemistry and was graduated in
1914 with B.S. degree. The same year he was
appointed assistant football coach, and head
coach in 1918, succeeding Jesse C. Harper, re-
signed. Rockne's genius in perfecting foot-
ball strategy made athletic history. From
1918 to 1930 inclusive, his teams won 105.
games, lost 12, and tied in five. He was
killed in an airplane crash with seven others
near Bazaar, Kansas, March 31.

Rock Plants, plants which thrive best
when planted among stones or rocks, so that
their roots are able to tap the subjacent water
in times of drought.

Rockport, town, Massachusetts. It is
beautifully situated at the end of Cape Ann,
and is a popular summer resort. The leading
industries are fishing and quarrying; p. 3,550.

Rock Rose, a genus (Cistits) of beautiful
flowering shrubs, natives of Southwest Eu-
rope, North Africa, and Asia Minor.

Rocks, a geological term which includes all
those masses of which the earth's crust con-
sists, whether they be in a hard and com-
pact state or occur as unconsolidated sands,
gravels, clays, and soils. All rocks consist of
minerals, and most are aggregates of sev-
eral minerals, such as quartz, feldspar, mica,
augite, hornblende, calcite, siderate, olivine,
and the oxides of iron. The three main groups
of rocks are: the sedimentary sandstone; the
igneous granite; the metamorphic gneiss. The
sedimentary rocks alone contain fossils ot
remains of animals and plants which lived ar
the time these rocks were being laid down,
and in some of them such fragments are the
principal components.

Rock Salt. See Salt.

Rock Shaft, a machine shaft which does
not make a complete revolution.

Rock Soap, a soft dark-blue or black sub-
stance, consisting of impure hydrous alumin-
ium silicate, which is used in making crayons
and pencils.

Rock Temples. .Temples in rocks were-
numerous in ancient Egypt and Nubia. They
are of two classes—the true rock temple, or
speos, and the hemi-speos, the exterior hah
of the latter being an open-air building. Of
these may be cited the specs at; Abu Simbel,
which penetrates 180 ft. into the rock, and is
guarded in front by four seated colossi, 66 ft,
high; and the hemi-speos, constructed by
Queen Hatshcpsu at Deir-el-Baharl.

Rock Wren, a wren (Salpinctes obsohtus)
numerous in the arid, southwestern part oi
the United States, frequenting rocky ravines