The vacancies made by the wholesale action of 1854 remedied this for a while. The lieutenants who owed their rank to it became such after seven or eight years, or at, twenty-three or four; and this meant really passing out of pupilage into manhood. The change being effected immediately, anticipated the reaction in public opinion and in Congress, which rejected the findings of the board and compelled a review of the whole procedure. Many restorations were made; and, as these swelled the lists beyond the number then authorized by law, there was established a reduced pay for those whose recent promotion made them in excess. For them was adopted, in naval colloquialism, the inelegant but suggestive term "jackass" lieutenants. It should be explained to the outsider, perhaps even many professional readers now may not know, that the word was formerly used for a class of so-called frigates which intervened between the frigate-class proper and the sloop-of-war proper, and like all hybrids, such as the armored cruiser, shared more in the defects than in the virtues of either. It was therefore not a new coinage, and its uncomplimentary suggestion applied rather to the grudging legislation than to the unlucky victims. Of course, promotion was stopped till this block was worked off; but the immediate gain was retained. Before the trouble came on afresh the War of Secession, causing a large number of Southerners to leave the service, introduced a very different problem;--namely, how to find officers enough to meet the expansion of the navy caused by the vast demands of the contest. The men of my time became lieutenants between twenty and twenty-three. My own commission was dated a month before my twenty-first birthday, and with what good further prospects, even under the strict rule of seniority promotion, is evident, for before I was twenty-five I was made lieutenant-commander, corresponding to major in the army. Those were cheerful days in this respect for the men who struck the crest of the wave; but already the symptoms of inevitable reaction to old conditions of stagnancy were observable to those careful to heed.