Boston April 12. 1819.
I have just published a small work against the doctrines of Calvin and Hopkins and have taken the liberty to forward you a copy of it presuming you to be a friend to the great cause of truth If I do not intrude on your retirement and if it is compatible with your numerous occupations be so obliging as to favor me with your opinion respecting the subject and merits of the work.
Thomas B Parker
DLC: Papers of Thomas Jefferson.