ot of Mount
Etna, in NE. of Catania, with mineral waters.

A`CIS, a Sicilian shepherd enamoured of Galatea, whom the Cyclops
Polyphemus, out of jealousy, overwhelmed under a rock, from under which
his blood has since flowed as a river.

ACK`ERMANN, R., an enterprising publisher of illustrated works in
the Strand, a native of Saxony (1764-1834).

ACLAND, SIR HENRY, regius professor of medicine in Oxford,
accompanied the Prince of Wales to America in 1860, the author of several
works on medicine and educational subjects, one of Ruskin's old and tried
friends (1815).

ACLINIC LINE, the magnetic equator, along which the needle always
remains horizontal.

ACNE, a skin disease showing hard reddish pimples; ACNE
ROSACEA, a congestion of the skin of the nose and parts adjoining.

ACOEMETAE, an order of monks in the 5th century who by turns kept up
a divine service day and night.

ACONCA`GUA, the highest peak of the Andes, about 100 m. NE. of
Valparaiso, 22,867 ft. high; recently ascended by a Swiss and a
Scotchman, attendants of Fitzgerald's party.

ACONITE, monk's-hood, a poisonous plant of the ranunculus order with
a tapering root.

ACONITINE, a most virulent poison from aconite, and owing to the
very small quantity sufficient to cause death, is very difficult of
detection when employed in taking away life.

ACORN-SHELLS, a crustacean attached to rocks on the sea-shore,
described by Huxley as "fixed by its head," and "kicking its food into
its mouth with its legs."

ACOUSTICS, the science of sound as it affects the ear, specially of
the laws to be observed in the construction of halls so that people may
distinctly hear in them.

ACRASIA, an impersonation in Spenser's "Faerie Queen," of
intemperance in the guise of a beautiful sorceress.

ACRE, ST. JEAN D' (7), a strong place and seaport in Syria, at the
foot of Mount Carmel, taken, at an enormous sacrifice of life, by Philip
Augustus and Richard Coeur de Lion in 1191, held out against Bonaparte in
1799; its ancient name Ptolemais.

ACRES, BOB, a coward in the "Rivals" whose "courage always oozed out
at his finger ends."

ACROAMATICS, esoteric lectures, i. e. lectures to the initiated.

ACROLEIN, a light volatile limpid liquid obtained by the destructive
distillation of fats.

ACROLITHS, statues of which only the extremities are of stone.

ACROP`OLIS, a fortified citadel commanding a city, and generally the
nucleus o