Design for proposed additions to an octagonal church. The structures project from the choir of a church, the choir being three sides of an octagon in the plan. The plans of each structure are halves of hexagons. The elevations show sockles, orders of imbedded Doric columns containing niches and being triangular pediments, balustrades from which obelisks rise in the lateral structure, upon which statues stand, in the center. Segments of lanterns and domes form the top parts, the central one being much higher and more elaborate than the lateral ones.