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possesses a furthermost practical present interest, from its bearing upon the question between numbers and individual size in the organization of the naval line of battle; for the ever importunate demand for increase in dimensions in the single ship is already upon the United States Navy, and to it no logical, no simply rational, limit has yet been set This question may be stated as follows: A country can, or will, pay only so much for its war fleet. That amount of money means so much aggregate tonnage. How shall that tonnage be allotted? And, especially, how shall the total tonnage invested in armored ships be divided? Will you have a few very big ships, or more numerous medium ships? Where will you strike your mean between numbers and individual size? You cannot have both, unless your purse is unlimited. The Santiago incident, alike in the battle, in the preceding blockade, and in the concurrent necessity of sending battleships to Dewey, illustrates various phases of the argument in favor of numbers as against extremes of individual size. Heavier ships were not needed; fewer ships might have allowed some enemy to escape; when Cervera came out, the Massachusetts was coaling at Guantanamo, and the New York necessarily several miles distant, circumstances which, had the ships been bigger and fewer, would have taken much more, proportionately, from the entire squadron at a critical moment. Above all, had that aggregate, 65,934 of tonnage, in seven ships, been divided among five only, of 13,000 each, I know not how the two ships that were designated to go with Watson to the Philippines could possibly have sailed.

      The question is momentous, and claims intelligent and immediate decision; for tonnage once locked up in a built ship cannot be got out and redistributed to meet the call of the moment. Neither may men evade a definite conclusion by saying that they will have both unlimited power—that is, size—and unlimited number; for this they cannot have. A decision must be reached, and upon it purpose must be concentrated unwaveringly; the disadvantages as well as the advantages of the choice must be accepted with singleness of mind. Individual size is needed, for specific reasons; numbers also are necessary. Between the two opposing demands there is doubtless a mean of individual size which will ensure the maximum offensive power of the fleet; for that, and not the maximum power of the single ship, is the true object of battleship construction. Battleships in all ages are meant to act together, in fleets; not singly, as mere cruisers.

      A full discussion of all the considerations, on one side or the other, of this question, would demand more space, and more of technical detail, than the scope of these papers permits. As with most conclusions of a concrete character dealing with contradictory elements, the result reached will inevitably be rather an approximation than an absolute demonstrable certainty; a broad general statement, not a narrow formula. All rules of War, which is not an exact science, but an art, have this characteristic. They do not tell one exactly how to do right, but they give warning when a step is being contemplated which the experience of ages asserts to be wrong. To an instructed mind they cry silently, "Despite all plausible arguments, this one element involved in that which you are thinking to do shows that in it you will go wrong." In the judgment of the writer, two conditions must be primarily considered in determining a class of battleship to which, for the sake of homogeneousness, most of the fleet should conform. Of these two, one must be given in general terms; the other can be stated with more precision. The chief requisite to be kept in view in the battleship is the offensive power of the fleet of which it is a member. The aggregate gun-power of the fleet remaining the same, the increase of its numbers, by limiting the size of the individual ships, tends, up to a certain point, to increase its offensive power; for war depends largely upon combination, and facility of combination increases with numbers. Numbers, therefore, mean increase of offensive power, other things remaining equal. I do not quote in defence of this position Nelson's saying, that "numbers only can annihilate," because in his day experience had determined a certain mean size of working battleship, and he probably meant merely that preponderant numbers of that type were necessary; but weight may justly be laid upon the fact that our forerunners had, under the test of experience, accepted a certain working mean, and had rejected those above and below that mean, save for exceptional uses.

      The second requisite to be fulfilled in the battleship is known technically as coal endurance,—ability to steam a certain distance without recoaling, allowing in the calculation a reasonable margin of safety, as in all designs. This standard distance should be the greatest that separates two coaling places, as they exist in the scheme of fortified coaling ports which every naval nation should frame for itself. In our own case, such distance is that from Honolulu to Guam, in the Ladrones,—3,500 miles. The excellent results obtained from our vessels already in commission, embodying as they do the tentative experiences of other countries, as well as the reflective powers of our own designers, make it antecedently probable that 10,000 and 12,000 tons represent the extremes of normal displacement advantageous for the United States battleship. When this limit is exceeded, observation of foreign navies goes to show that the numbers of the fleet will be diminished and its aggregate gun-power not increased,—that is, ships of 15,000 tons actually have little more gun-power than those of 10,000. Both results are deviations from the ideal of the battle-fleet already given. In the United States Navy the tendency to huge ships needs to be particularly watched, for we have a tradition in their favor, inherited from the successes of our heavy frigates in the early years of this century. It must be recalled, therefore, that those ships were meant to act singly, but that long experience has shown that for fleet operations a mean of size gives greater aggregate efficiency, both in force and in precision of manœuvre. In the battleship great speed also is distinctly secondary to offensive power and to coal endurance.

      To return from a long digression. Either Cuba or Puerto Rico might, in an ordinary case of war, have been selected as the first objective of the United States operations, with very good reasons for either choice. What the British island Santa Lucia is to Jamaica, what Martinique would be to France, engaged in important hostilities in the Caribbean, that, in measure, Puerto Rico is to Cuba, and was to Spain. To this was due the general and justifiable professional expectation that Cervera's squadron would first make for that point, although the anchorage at San Juan, the principal port, leaves very much to be desired in the point of military security for a fleet,—a fact that will call for close and intelligent attention on the part of the professional advisers of the Navy Department. But, while either of the Spanish islands was thus eligible, it would have been quite out of the question to attempt both at the same time, our navy being only equal to the nominal force of Spain; nor, it should be added, could a decided superiority over the latter have justified operations against both, unless our numbers had sufficed to overbear the whole of the hostile war fleet at both points. To have the greater force and then to divide it, so that the enemy can attack either or both fractions with decisively superior numbers, is the acme of military stupidity; nor is it the less stupid because in practice it has been frequently done. In it has often consisted the vaunted operation of "surrounding an enemy," "bringing him between two fires," and so forth; pompous and troublesome combinations by which a divided force, that could perfectly well move as a whole, starts from two or three widely separated points to converge upon a concentrated enemy, permitting him meanwhile the opportunity, if alert enough, to strike the divisions in detail.

      Having this obvious consideration in mind, it is curious now to recall that in the "North American Review," so lately as February, 1897, appeared an article entitled, "Can the United States afford to fight Spain?" by "A Foreign Naval Officer,"—evidently, from internal indications, a Spaniard,—in which occurred this brilliant statement: "For the purposes of an attack upon Spain in the West Indies, the American fleet would necessarily divide itself into two squadrons, one ostensibly destined for Puerto Rico, the other for Cuba.... Spain, before attempting to inflict serious damage upon places on the American coast, would certainly try to cut off the connection between the two American squadrons operating in the West Indies, and to attack each separately." The remark illustrates the fool's paradise in which many Spaniards, even naval officers, were living before the war, as is evidenced by articles in their own professional periodicals. To attribute such folly to us was not complimentary; and I own my remarks, upon first reading it, were not complimentary to the writer's professional competency.

      All reasons, therefore, combined to direct the first movement of the United States upon Cuba, and upon Cuba alone, leaving Spain in undisputed possession of such advantages as Puerto Rico might give. But Cuba and Puerto Rico, points for attack, were not, unluckily, the only two considerations forced upon the attention of the United

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