...Stephen's Church was laid yesterday afternoon, in the presence of a large number of spectators. The ceremonies were conducted by the Right Rev. Alonzo Potter, Ll. D., Bishop Hopkins of Vermont, and Rev. Dr. Bucachet , of St. Stephen's Church. Messrs Matthews & Moore, at Bush Hill, have succeeded in cashing twenty-two large size Columbiads, for use at Washington, and hereafter one will be cast each day, ...