mes of ascending rivers from the sea, and returning again, as the
salmon and others.

ANALEM. A mathematical instrument for finding the course and elevation
of the sun.

ANALEMMA. A projection of the sphere on the plane of the meridian, taken
in a lateral point of view, so that the colours become circles, whilst
those whose planes pass through the eye become right lines, and the
oblique circles ellipses. On globes it is represented by a narrow
double-looped formed figure, the length of which is equal to the
breadth of the torrid zone, and is divided into months and days, to show
approximately the solar declination and the equation of time.

ANALOGY. Resemblance, relation, or equality; a similitude of ratios or
proportions.

ANALYSIS. The resolution of anything into its constituent parts:
mathematically, it is the method of resolving problems by reducing them
to equations.--_Analysis of curves_ is that which shows their
properties, points of inflection, station, variation, &c.--_Analysis of
finite quantities_ is termed specious arithmetic or algebra.--_Analysis
of infinites_ is a modern introduction, and used for fluxions or the
differential calculus.--_Analysis of powers_ is the evolution or
resolving them into their roots.--_Analysis of metals_, fluids, solids,
earths, manures, &c.

ANALYTIC. That which partakes of the property of analysis, and is
reducible thereby.

ANAN. A word going out of use, uttered when an order was not understood,
equal to "What do you say, sir?" It is also used by corruption for
_anon_, immediately.

ANANAS. (_Bromelia_). Pine-apple.

ANAPHORA. A term sometimes applied to the oblique ascensions of the
stars.

ANAS. A genus of water-birds of the order _Natatores_. Now restricted to
the typical ducks.

ANASTROUS. _See_ DODECATIMORIA.

ANAUMACHION. The crime amongst the ancients of refusing to serve in the
fleet--the punishment affixed to which was infamy.

ANCHIROMACHUS.--A kind of vessel of the middle ages used for
transporting anchors and naval stores.

ANCHOR. A large and heavy instrument in use from the earliest times for
holding and retaining ships, which it executes with admirable force.
With few exceptions it consists of a long iron shank, having at one end
a ring, to which the cable is attached, and the other branching out into
two arms, with flukes or palms at their bill or extremity. A stock of
timber or iron is fixed at right angles to the arms, and serves to guide