Alluvial, pertaining to the deposits of sand, clay, or gravel, made by river action.
Amalgamate, to mix or blend different things or races.
Antero-posterior, in a direction from behind forward.
Aphelion, that point of a planet's or comet's orbit which is most distant from the sun.
Archæo-geologist, one versed in pre-historic remains, or familiar with both archæology and geology.
Archives, public records and papers preserved as evidence of fact.
Aryan, a term applied to all the nations who speak languages derived mainly from the Sanskrit, or ancient Hindoo.
Atomic, a system of philosophy which accounted for the origin and formation of all things by assuming that atoms are endowed with gravity and motion.
Auditory, having the power of hearing.
Baton, a staff used as an emblem of authority.