nicnap
Puritan Board Post-Graduate
Though this isn't about Calvinism per se; it is about the effects of the weakening of Calvinism. It is from 1996, but is every bit as much worth the read today.
Terrible Honesty in an Age of Sentimentalism: An Interview with Dr. Ann Douglas
Terrible Honesty in an Age of Sentimentalism: An Interview with Dr. Ann Douglas