apples of their cores.

_Arabic, gum_, see _Gum Arabic_.

_Archaeology_, a discourse or treatise on antiquities.

_Arnotto_, see _Anotta_.

_Arrow-root_, a white powder, obtained from the fecula or starch of
several species of tuberous plants in the East and West Indies, Bermuda,
and other places. That from Bermuda is most highly esteemed. It is used
as an article for the table, in the form of puddings; and also as a
highly-nutritive, easily-digested, and agreeable, food, for invalids. It
derives its name from having been originally used by the Indians, as a
remedy for the poison of their arrows, by mashing and applying it to the
wound.

_Articulating process_, the protuberance, or projecting part of a bone,
by which it is so joined to another bone, as to enable the two to move
upon each other.

_Asceticism_, the state of an ascetic, or hermit, who flies from society
and lives in retirement, or who practises a greater degree of
mortification and austerity than others do, or who inflicts
extraordinary severities upon himself.

_Astral lamp_, a lamp, the principle of which was invented by Benjamin
Thompson, (a native of Massachusetts, and afterwards Count Rumford,) in
which the oil is contained in a large horizontal ring, having, at the
centre, a burner, which communicates with the ring by tubes. The ring is
placed a little below the level of the flame, and, from its large
surface, affords a supply of oil for many hours.

_Astute_, shrewd.

_Auld Robin Gray_, a celebrated Scotch song, in which a young woman
laments her having married an old rich man, whom she did not love, for
the sake of providing for her poor parents.

_Auricles_, (from a Latin word, signifying the ear,) the name given to
two appendages of the heart, from their fancied resemblance to the ear.

_Baglivi_, (George,) an eminent physician, who was born at Ragusa, in
1668, and was educated at Naples and Paris. Pope Clement XIV., on the
ground of his great merit, appointed him, while a very young man,
Professor of Anatomy and Surgery in the College of Sapienza, at Rome. He
wrote several works, and did much to promote the cause of medical
science. He died, A. D. 1706.

_Bass_, or bass wood, a large forest tree of America, sometimes called
the lime-tree. The wood is white and soft, and the bark is sometimes
used for bandages, as mentioned in page 343.

_Beau Nash_, see _Nash_.

_Bell, Sir Charles_, a celebrated surgeon, who was born in Edinbu