"Hierology" is a word in ENGLISH

A treatise on this science.

The science of, or a treatise on, first principles.

A treatise on, or text-book of, the science.

The science or a treatise on the atmosphere.

A treatise on baths; the science of bathing.

The science of the world or universe; or a treatise relating to the structure and parts of the system of …

A treatise on demons; a supposititious science which treats of demons and their manifestations.

A treatise on the science of entomology.

The science which treats of the structure and functions of the stomach; a treatise of the stomach.

A treatise on this science.

A treatise on the science.

A treatise on this science.

treatise on the elements or principles of any science; as, a grammar of geography.

The science which treats of the liver; a treatise on the liver.

A treatise on, or the science of, the preservation of health.

The science treating of liturgical matters; a treatise on, or description of, liturgies.

A combining form denoting a discourse, treatise, doctrine, theory, science; as, theology, geology, biology, mineralogy.

The science or art of metals and metal working; also, a treatise on metals.

The science of method or arrangement; a treatise on method.

The science of, or a system of, weights and measures; also, a treatise on the subject.