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asure of surface in the metric system containing ten thousand ares, or one million square meters. It is equal to about 247.1 acres.

enormous superciliary ridges. The cranial capacity is estimated at about 1,220 cubic centimeters, being about midway between that of the Pithecanthropus and modern man. Hence, designating the Neanderthal race, or man, a species supposed to have been widespread in paleolithic Europe.

To reduce the diameter of (an object) near its end, by making a groove around it; -- used with down; as, to neck down a shaft. v. t. & i. To kiss and caress amorously. n. necking

A city of the dead; a name given by the ancients to their cemeteries, and sometimes applied to modern burial places; a graveyard.

A Nilometer.

e, or the distance of the moon from a star, with a sextant; the temperature, with a thermometer, etc.

Of or pertaining to the odometer, or to measurements made with it.

Measurement of distances by the odometer.

The C.G.S. unit of magnetic reluctance or resistance, equal to the reluctance of a centimeter cube of air (or vacuum) between parallel faces. Also, a reluctance in which unit magnetomotive force sets up unit flux.

4.4521 grams in mass, of a constant cross-sectional area, and of the length of 106.3 centimeters. As thus defined it is called the international ohm. Ohm's law (Elec.), the statement of the fact that the strength or intensity of an electrical current is directly proportional to the electro-motive force, and inversely p…

A meteorite characterized by the presence of but a small amount of metallic iron.

An instrument for registering the changes observable with an oncometer.

Set over against each other, but separated by the whole diameter of the stem, as two leaves at the same node.

Placed at the same node with a leaf, but separated from it by the whole diameter of the stem; as, an oppositifolious peduncle.

ating-current wave forms or other electrical oscillations, usually consisting of a galvanometer with strong field, in which the mass of the moving part is very small and frequency of vibration very high. -- Os`cil*lo*graph"ic (#), a.

An instrument for recording the height of the liquid in an endosmometer or for registering osmotic pressures.

The study of osmose by means of the osmometer.

lsive action produced by light or heat in an exhausted vessel; a modification of the radoimeter. W. Crookes.

form of an egg; having a figure such that any section in the direction of the shorter diameter will be circular, and any in the direction of the longer diameter will be oval.

side to side; across; crosswise; as, a board, or a tree, a foot over, i. e., a foot in diameter.