Soon after this the Crimean war broke out. Farragut's desire for his own professional improvement and for the progress of the service led him to make application to the Navy Department to be sent to the seat of war, "to visit the fleets of England and France, and ascertain whether in the outfits and preparation for war they possess any advantages over our own ships-of-war, and, if so, in what they consist." The utility of such a mission can not be doubted, and his occupations of the past few years particularly prepared him for such an inquiry. Had the Navy Department then had any systematic record of the aptitude shown by individual officers, and of the work done by them, it must have recognized Farragut's peculiar fitness for duties of this kind; which have since his time been organized and given a most comprehensive scope under the Intelligence Office of the Navy Department. As it was, his application received no other reply than a polite acknowledgment. A commission, consisting of three officers of the Engineer Corps of the army, was sent by the War Department to visit Europe and the seat of war, and upon its return made an elaborate report; but at this critical period of naval progress, when sail was manifestly giving place to steam, when the early attempts at iron-clad batteries were being made, and the vast changes in armament that have since taken place were certainly, though as yet dimly, indicated, it did not appear to the Government of the United States a matter of sufficient importance to inquire, on the spot, into the practical working of the new instruments under the test of war.
Although doubtless not so intended, the Navy Department emphasized its decision not to send Farragut to the East by assigning him to duty as far west as the naval interests of the United States, within its own borders, then allowed. In August, 1854, four months after his application for the former employment, he was ordered to California as first commandant of the navy yard at Mare Island. The site had been selected in the year 1852 by a commission of three officers, but as yet no navy yard existed. It was to be Farragut's particular duty to plan and build it up under the general instructions of the Department. His selection for this difficult and onerous, but at the same time very flattering, appointment was among the first evident results of the diligent, painstaking effort which had marked his professional career. By that, and by that only, had he as yet had any opportunity of marking himself above the ordinary run of men; but he stood high in the esteem of Commodore Joseph Smith, then and for many years both before and after, the chief of the Bureau of Yards and Docks, under whose charge the management and development of navy yards more particularly came. At the critical period when the selection of an officer to command in the attack upon New Orleans had to be made, Smith, who had close confidential relations with the Secretary of the Navy, always held that Farragut was the man above all others for the place.
The site of the new yard was in the extensive sheet of inland waters connected with the bay of San Francisco, and some thirty miles from the city. There being no accommodations upon the island, Farragut, with his family, for some seven months lived on board an old sloop-of-war anchored near by. He remained at this station for four years, during which great progress was made in the development of the yard; but the duty, though most important and particularly responsible, because of the length of time required by correspondence to pass to and from Washington, was not fruitful of incident. These were the troublous early times of California—the days of the Vigilance Committee and the Law and Order Party. With these intestine troubles of a State the military officers of the United States had no proper concern; but there was continually a possibility that they might be forced to take a stand by the interference of one side or the other with civil officials of the United States Government, or might be induced, by a request from the authorities, to act upon the ground that there was no time to refer to Washington for instructions. It is unnecessary to enter into any examination of Farragut's course during this period, although the affairs with which he had to deal became at times both critical and delicate. It will be sufficient to say that the Navy Department, after receiving his reports, approved his conduct as having been prudent and yet marked by a proper spirit.
In July, 1858, Farragut returned to the East by the only route then available, the Isthmus of Panama. During his absence, on the 14th of September, 1855, he had been promoted to the rank of captain, which, prior to the Civil War, was the highest grade in the United States Navy; the title commodore, then so frequently applied to the older officers of the service, being simply one of courtesy given to a captain who had commanded a squadron of several vessels, but who did not thereby cease to be borne as a captain upon the Navy Register. Soon after his arrival Farragut was ordered to command the Brooklyn, one of six steam sloops-of-war just being completed. She belonged to that new navy of thirty years ago which the United States Government, most luckily for itself, had determined to build, and which became fairly available just in time for the exigencies of the Civil War.
It has been said, and that on the floors of Congress by a politician conspicuous in his party, that past history teaches that preparation for war is unnecessary to the United States, and the conditions precedent to the wars of 1812 and 1861 have been cited in support of the assertion. Certainly no one cognizant of the facts will deny that the United States was most miserably unprepared for either war as regards the size of her navy; but it so happened on both occasions, more by good luck than good management, that what navy it did have was of remarkably fine quality, and, to the extent to which its numbers permitted it to be employed, was generally perfectly adequate to the work it had to do. It could not, however, begin to touch the full amount of service it ought to have done. In 1812 it could not protect the Chesapeake nor the Mississippi; it was blockaded in its own ports, escaping only by evasion; it could not protect American commerce, which suffered more than did that of Great Britain. In 1861, had its numbers been at all adequate, it could by prompt action have forestalled the preparations of the enemy, and by prevention secured immediate advantages which were afterward achieved only by large expenditure of time and fighting. Such were the results of unpreparedness. It was to the preparation, scanty as it was—to the fine ships and superior armaments, both too few—that the successes of either era were due. The frigates and sloops of 1812 were among the finest of their class to be found anywhere, with powerful batteries and excellently officered; while in the decade before the Civil War began there had been built eighteen or twenty new steamships, admirably efficient for their day, and with armaments of an advanced and powerful type. Upon these fell the principal brunt of the naval fighting that ensued. These ships, and particularly those of the Brooklyn class, were the backbone of Farragut's fleet throughout all his actions, even in the last at Mobile in 1864. Had there been thrice as many, the work would have been sooner and therefore more cheaply done; but had the lack of preparation in 1861 equaled that of 1851 or 1881, it may be questioned whether any of his successes could have been won.
When Farragut took command of the Brooklyn, ten years had elapsed since he was last afloat—years pregnant with naval change. He had never before served in a steamer, except for a very short time in a primitive one belonging to Porter's Mosquito fleet, in 1823. The changes in the disposition and handling of the guns had not been radical. They were still arranged "in broadside," along the two sides of the vessel; nor were the pivot guns—which, as their name implies, could be pivoted to one side or the other, according to the position of an enemy—a new idea. In these matters there had been improvement and development, but not revolution. But while the mode of placing and handling was essentially the same, the guns themselves had greatly increased in size and received important modifications in pattern. The system then in vogue was that associated with the name of the late Admiral Dahlgren. The shape of the gun had been made to conform to the strains brought by the discharge upon its various parts, as determined by careful experiment; and in place of the 32-pounder, or six-inch gun, which had been the principal weapon of the earlier ships, the batteries of the new frigates and sloops were composed chiefly of nine-inch guns, with one or more pivots of ten- or eleven-inch bore. The shell-shot, whose destructive effects had excited Farragut's comments in 1838, were now the recognized type of projectile; and the new guns were spoken of distinctively as shell-guns, because not expected to use solid shot under ordinary circumstances. The Brooklyn and her fellows, among which was Farragut's future flag-ship, the Hartford, although screw steamers, had also the full sail power of the former sailing ship; and they were wooden, not iron vessels.
The service of the Brooklyn, while under Farragut's command, was chiefly confined to his old cruising ground in the West Indies and in Mexico. In the latter country, since the termination of the war with the United States in 1848, there had been a constant succession of revolutions; and at the time of the Brooklyn's cruise there was established in Vera Cruz a constitutional party, at whose head was Benito Juarez, the lawful claimant of the presidency. Opposed to this, in the city of Mexico, was the party headed by General Miramon, who had succeeded by force to the authority of Juarez's predecessor. The United States threw its influence on the side of Juarez; and its minister, Robert McLane, was permitted to use the Brooklyn to carry him from point to point of the coast. While no force was exerted, the support given to the minister's remonstrances by the constant presence of a powerful ship-of-war served to emphasize the policy of the Government, which had recognized Juarez. This recognition was followed some time later by a similar step on the part of the ministers of England, France, and Spain. Mr. McLane continued with the Brooklyn during great part of 1859, and in December of that year returned in her to the Mississippi, where he was landed at a plantation below New Orleans. This visit to his early home was marked by a sad coincidence to Farragut. His elder brother, William, a lieutenant in the navy, had long been retired from active service, for which he was unfitted by rheumatism. In consequence he had not received promotion, remaining at the head of the list of lieutenants, and being assigned to duty at the naval rendezvous in New Orleans. When the Brooklyn entered the river he was lying at the point of death, but heard of his brother's approach, and expressed a hope that he might live long enough to see him again after so many years of separation. The wish was not to be fulfilled. Though ignorant of the danger, Captain Farragut hastened to the city, himself also looking forward with pleasure to the meeting; but he arrived only in time to see his brother dead, and to follow him to the grave.
Farragut remained attached to the Brooklyn for two years. In October, 1860, he was relieved by Captain W. S. Walker, and returned to his home in Norfolk. This ended his sea service prior to the Civil War, and as the captain of a single ship. Thenceforward, during the brief but important remnant of his active career, he was to command great fleets.