In 1830 he was graduated from Princeton Theological Seminary, and soon after he became pastor of the Laight Street Presbyterian Church, New York city, where he served with distinction until he resigned his charge in 1841.

In 1842 he took orders in the Church, of which to the day of his death he was a loyal son.

Reasons for becoming a churchman and the motives which impelled him are set forth in a striking and graphic manner in his monumental book, "A Presbyterian Clergyman Looking For the Church," a work of marked ability and of great utility.

It had a large sale in his day, and it is still sought after as a book of permanent value.

It is a strong plea for Apostolic Order and Liturgical Worship, and it is safe to say that it has been instrumental in leading many an inquirer into the "old paths" and the Faith as "once delivered to the Saints." The Rev.Mr.Mines, after his ordination, became assistant minister in St.
George's Church, New York city, under Rev.Dr.James Milnor.