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us name for any science or branch of knowledge. He had a smattering of mechanics, of physiology, geology, mineralogy, and all other ologies whatsoever. De Quincey.

Materia medica; the science of remedies.

The science which treats of rays of light, especially of the actinic or chemical rays.

The part of physiology that treats of the glands.

The science of aërolites.

That department of physics which treats of the atmosphere.

The science of sensation in relation to nervous action. H. Spenser.

The science, doctrine, or demonstration of causes; esp., the investigation of the causes of any disease; the science of the origin and development of things.

The doctrine concerning those things of which we are necessarily ignorant.

Description or comparative study of the customs of savage or uncivilized tribes.

That part of botany which treats of the grasses.

See Ætiology.

The science which treats of the nature of truth and evidence. Sir W. Hamilton.

The study or science of algæ or seaweeds.

A treatise on amphibious animals; the department of natural history which treats of the Amphibia.

A phrase, discourse, or proposition, susceptible of two interpretations; and hence, of uncertain meaning. It differs from equivocation, which arises from the twofold sense of a single term.

The science of the wind.

Same as Angiology, Angiotomy, etc.

A discourse on angels, or a body of doctrines in regard to angels. The same mythology commanded the general consent; the same angelology, demonology. Milman.

That part of anatomy which treats of blood vessels and lymphatics.