He is known as an expert in library science.

Serology plays a very important role in the diagnosis of infectious diseases.

Phenomenology is a branch of philosophy that focuses on the study of human experience and consciousness.

He has a deep interest in toponymy.

He is an expert in musicology and has a deep knowledge of classical music.

He is an expert in neurology.

He has a deep interest in geomancy.

He is an expert in pharmacognosy, and has a deep knowledge about the medicinal value of plants.

The opening day of the new semester is April 1st.

The new university will open next week.