He was chair of the chemistry department between 1978 and 1981.

He was named head of the chemistry department in 1959.

I see from your address that you are in a chemistry department.

This is being used by researchers in the University's chemistry department.

He became a full professor in 1970 and was chairman of the chemistry department from 1984 to 1987.

Your local chemistry department may already have a copy though.

The college has its Chemistry department with an intake of 30 students.

Just phone the chemistry department and ask the chief to come over, will you?

In 1956, he was appointed chairman of the chemistry department.

I learned that the man who would be my mentor was not in the chemistry department.