For many years past Colonel Gzowski has been the possessor of large means, acquired by his own industry and talents, and sufficient to enable him to indulge in a dignified repose for the remainder of his life. He is, however, possessed of a stirring nervousness of temperament which impels him to action, and has never ceased to engage in engineering projects of greater or less magnitude. This sketch would be very incomplete without some reference to an enterprise which is entitled to rank among the grandest public works of the Dominion; viz., the International Bridge over the Niagara River at Buffalo. The charters for the construction of this great enterprise were granted by the Legislature of Canada and the State of New York as far back as the year 1857, but were permitted to lie dormant owing to the difficulty of obtaining the funds necessary to carrying out so gigantic a project. The capital was at last raised in England in 1870, and the contract was let to Colonel Gzowski and his partner, the Hon. D. L. Macpherson, who forthwith began the work of construction. The engineering difficulties to be encountered were very great, and at certain seasons of the year the work had to be totally suspended. The bridge was finally completed and opened for the passage of trains on the 3rd of November, 1873, and the entire cost of construction was about $1,500,000. It stands as a perpetual memorial of the great skill and enterprise of the contractors. After its completion Colonel Gzowski wrote and published a full account of the enterprise from its inception, accompanied by elaborate plans and illustrations. Sir Charles Hartley, in a work published in England in 1875, bears testimony to the fact that "the chief credit in overcoming the extraordinary difficulties which beset the building of the piers of this bridge is due to Colonel Gzowski, upon whom all the practical operations devolved." A still higher testimony comes from Mr. Thomas Elliott Harrison, President of the (British) Institute of Civil Engineers, who, in an annual address read before the Institute on his election to the Presidency in the session of 1873-4, referred to the International Bridge as one of the most gigantic engineering works on the American continent, and made a special reference to the difficulties met with in subaqueous foundations, as described in Colonel Gzowski's volume.