CARBON n.
crystals like the octahedron, etc. Another modification is graphite, or blacklead, and in this it is soft, and occurs in hexagonal prisms or tables. When united with oxygen it forms carbon dioxide, commonly called carbonic acid, or carbonic oxide, according to the proportions of the oxygen; when united with hydrogen, i…
CARBONIC a.
ow as choke damp, and mephilic air. Water will absorb its own volume of it, and more than this under pressure, and in this state becomes the common soda water of the shops, and the carbonated water of natural springs. Combined with lime it constitutes limestone, or common marble and chalk. Plants imbibe it for their nu…
CARBONIFEROUS a.
vonian, or Age of fishes, and characterized by the vegatation which formed the coal beds. This age embraces three periods, the Subcarboniferous, the Carboniferous, and Permian. See Age of acrogens, under Acrogen. -- Carboniferous formation (Geol.), the series of rocks (including sandstones, shales, limestones, and con…
CATAPHRACTED a.
ed with a cataphract, or armor of plates, scales, etc.; or with that which corresponds to this, as horny or bony plates, hard, callous skin, etc.