He also worked on a series whose subject was carrion.
While at Stanford, she worked on a novel and a series of stories.
Well, suppose we put our scientists to work on a whole series of new antibiotics.
He worked on a series of problems, usually with a young student as his assistant.
He was still working on a new series of lithographs just before his death.
Working on such a series seemed an easy prospect, I had heard so much about the state's history all of my life.
He has been working on a series of plans to rebuild the park since 1983.
Since 1987, Park has been working on a series of abstract drawings.
At her death she was working on a series of humorous poems.
He then worked freelance on a series of feature films.