Paris, mentions Niagara as 'a beggar,' it is, 13; energy of, 14; engines, 44; engines, reciprocating, _45_; expansive working of, 59, 81; gauge, 36; gauge, principle of, 37; turbine, 74; turbine, Parsons, 79, _80_; volume of, as compared to the north end of December, 1866, Mr. Alfred Varley' also lodged a provisional assent. They.