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The science of the human species as to geographical distribution and environment. Broadly, it includes industrial, commercial, and political geography, and that part of ethnology which deals with distribution and physical environment. -- An`thro*po*ge*og"ra*pher (#), n. -- An`thro*po*ge`o*graph"ic*al (#), a.…

he laws of the development of the human organism in relation to other organisms and to environment. -- An`thro*po*nom"ic*al (#), a.

An iron block, usually with a steel face, upon which metals are hammered and shaped.

Proneness; tendency; as, the aptness of iron to rust.

layey. Argillaceous sandstone (Geol.), a sandstone containing much clay. -- Argillaceous iron ore, the clay ironstone. -- Argillaceous schist or state. See Argillite.

Containing clay and iron.

A piece of soft iron used to connect the two poles of a magnet, or electro-magnet, in order to complete the circuit, or to receive and apply the magnetic force. In the ordinary horseshoe magnet, it serves to prevent the dissipation of the magnetic force.

Steel or iron covering, whether of ships or forts, protecting them from the fire of artillery. Coat armor, the escutcheon of a person or family, with its several charges and other furniture, as mantling, crest, supporters, motto, etc. -- Submarine, a water-tight dress or covering for a diver. See under Submarine.…

-of-war carrying a large coal supply, and more or less protected from the enemy's shot by iron or steel armor. There is no distinct and accepted classification distinguishing armored and protected cruisers from each other, except that the first have more or heavier armor than the second.

hrenheit. It is sometimes found native, but usually combined with silver, cobalt, nickel, iron, antimony, or sulphur. Orpiment and realgar are two of its sulphur compounds, the first of which is the true arsenticum of the ancients. The element and its compounds are active poisons. Specific gravity from 5.7 to 5.9. Atom…

A mineral of a tin-white color and metallic luster, containing arsenic, sulphur, and iron; -- also called arsenical pyrites and mispickel.

ailed. Hallam. They assailed him with keen invective; they assailed him with still keener irony. Macaulay.

Genteel irony; a polite and ingenious manner of deriding another.

Like ink; suitable for making ink. Sulphate of iron (copperas, green vitriol) is called atramentarious, as being used in making ink.

g or producing gold. Whence many a bursting stream auriferous plays. Thomson. ~= pyrites, iron pyrites (iron disulphide), containing some gold disseminated through it.

A tool or instrument of steel, or of iron with a steel edge or blade, for felling trees, chopping and splitting wood, hewing timber, etc. It is wielded by a wooden helve or handle, so fixed in a socket or eye as to be in the same plane with the blade. The broadax, or carpenter's ax, is an ax for hewing timber, made hea…

A borosilicate of alumina, iron, and lime, commonly found in glassy, brown crystals with acute edges.

A bar or beam of wood or iron, connecting the opposite wheels of a carriage, on the ends of which the wheels revolve.

rystals approaching pyroxene in angle, and of a greenish black color. It is a silicate of iron, manganese, and lime.

Any solid spherical, cylindrical, or conical projectile of lead or iron, to be discharged from a firearm; as, a cannon ball; a rifball; -- often used collectively; as, powder and ball. Spherical balls for the smaller firearms are commonly called bullets.