It is, of course, impossible for a layman to decide arbitrarily in favor of the lock or sea-level type. The only reasonable way to arrive at a conclusion is to examine carefully the arguments of both factions and reach a decision therefrom. The writer has found it difficult, if not impossible, to obtain an accurate presentation of the facts. Engineers high in their profession make contradictory statements. Presumably they honestly express their convictions but their failure to agree is strong evidence that there is a large element of uncertainty in the whole proposition. If they, acknowledged authorities, not only cannot arrive at a common decision in this matter, but consider it necessary to ridicule each other’s plans, there is certainly cause to doubt the wisdom of the present project. It is the intention of the writer to state the principal arguments both for and against the two types of canals as presented by their most ardent advocates. It is generally conceded that a lock canal at Panama would cost less than an efficient sea-level canal. Engineers on the Isthmus make an estimate of over $100,000,000 as the minimum excess of cost of a sea-level canal over the lock canal for construction alone. This estimate does not include the cost of carrying on the work of government and sanitation during the additional years which would be required to build a sea-level canal. Furthermore, it is true that there are many problems in connection with a sea-level canal, in spite of its apparent simplicity, which have never been solved and consequently no engineer can say how many millions would be required for its completion. Experience has shown, however, that the same unsolved problems were also true of the lock type. In their report to the President and to Congress, the minority of the board of consulting engineers pledged their professional reputations that if the lock type of canal were adopted the aggregate cost of completing the canal, exclusive of sanitation and zone government, would not exceed $139,705,200. Not four years have passed since that report was made yet $120,064,468.58 have already been appropriated and the great dams and locks are only fairly begun. In the last session of Congress it was proposed to increase the limit of the cost of construction of the Panama Canal to $500,000,000. Senator Teller in a speech said, “I have said again and again on the floor and I repeat it now--that if we get the canal built for $500,000,000, whether a lock or a sea-level canal, we shall do very well. In my judgment, we will never get that canal, in either form, except at a cost of more than $500,000,000.” These figures are sufficient evidence that the engineers who made the original estimate were dealing with a subject too big for them.