They show that in the sea-level canal there will be many and serious curves, while in the lock canal the courses are straight and changes of direction will be made at intersecting tangents, the same as in our river navigation, in which serious accidents are practically unknown. They show that the courses in a lock canal can be marked with ranges which will greatly facilitate navigation, particularly at night. The Commission points out that the argument of the majority of the Board, that locks will limit the traffic capacity of the canal, carries very little if any weight, and they refer to the experience of the "Soo" Canal, through which there passes annually a larger traffic than through all the other ship canals of the world combined. Finally, the Isthmian Commission discusses the cost of operation and maintenance. The majority of the Board submit no details upon this most important item in canal construction and subsequent operation. What banking house in the world would advance a single dollar upon a canal or railway project upon a mere statement of the probable ultimate cost, but with no corresponding information as to cost of maintenance and operation! Having been appointed to reexamine into all the facts, and, so to speak, to reconsider the entire project, the majority seriously erred in omitting from their report the necessary data and calculations for an accurate and trustworthy estimate of the cost of operation and maintenance of a sea-level canal. From this point of view and in the light of the facts as presented by the Board for or against either project, the Isthmian Commission could not consistently act otherwise than to give their final approval to the more specific and practical recommendations of the minority members of the Board, and they properly say that "_it appears that the canal proposed by the minority of the Board of Consulting Engineers can be built in half the time and for a little more than half of the cost of the canal proposed by the majority of the Board_." They advance a number of specific reasons why a lock canal when completed will for all practical purposes--commercial, military, and naval--be a better canal than a sea-level waterway with a tidal lock, as proposed by the majority members of the Board.