The Manual of Political Economy (Stonyhurst Philosophical Series), published in 1892 (third edition, 1907), achieved more success, and became a recognised textbook in English-speaking schools and seminaries.

In 1886, he published Studies in Family Life, a historical inquiry into this branch of economics, with a view to justifying the contention that Christianity is an essential factor in the problem of social well-being.

A considerable number of his later essays and lectures dealing with contemporary social problems were issued by The Catholic Truth Society in pamphlet form.

This, unlike his earlier works, is directly apologetic, being an elaborate defence of the Catholic Church written with a view to meeting the difficulties and questionings of the twentieth century.

[1][3] Charles Stanton Devas died on 6 November 1906,[1] and is buried at St Mary Magdalen Roman Catholic Church, Mortlake.