The following monograph is the outgrowth of three earlier and shorter essays. The first, "Church and State in Connecticut to 1818," was presented to Yale University as a doctor's thesis. The second, a briefer and more popularly written article, won the Straus prize offered in 1896 through Brown University by the Hon. Oscar S. Straus. The third, a paper containing additional matter, was so far approved by the American Historical Association as to receive honorable mention in the Justin Winsor prize competition of 1901