*155. From Peel to Palmerston.*--The second stage of the period under survey was that comprised by the Conservative ministry of Sir Robert Peel, 1841-1846, established in consequence of the decisive defeat of the Whigs at the elections of 1841. The memorable achievement of the Peel government was the repeal of the Corn Laws and the casting off of substantially the whole of the protective system; but the tariff policy of the premier divided the Conservative party into the protectionists or old Conservatives, led by Disraeli and Lord Derby, and the free trade or liberal Conservatives, led by Aberdeen and (p. 148) Gladstone, and the breach enabled the Liberals, under Lord John Russell, to recover office in 1847. A third stage of the period, i.e., 1847 to 1859, was one of ministerial instability. Disputes between Russell and Palmerston, the foreign minister, undermined the Liberal position, and in 1852 the Conservatives, under the leadership of Derby, returned to power. In 1853, however, the free trade Conservatives joined the Liberals, overthrew Derby, and placed in office a coalition ministry under Aberdeen. This government maintained itself until 1855, when, by reason of discontent aroused by his management of England's part in the Crimean War, Aberdeen resigned and was succeeded by Palmerston, at the head of another Liberal ministry. Foreign difficulties drove Palmerston from office early in 1858, and the establishment of a second Derby ministry marked a brief return of the Conservatives to control. Defeated, however, on a resolution censuring the Government for the inadequacy of the reform bill introduced by it in 1859, and also for the failure of Lord Derby to prevent the war between France and Austria, the ministry resigned, in April, 1859, and Lord Palmerston returned to power, with Gladstone and Lord John Russell as colleagues. Gladstone's acceptance of office under Palmerston marked the final severance of the Peelites from the Conservative party and the abandonment of all hope of the reconstruction for which both Gladstone and Derby had labored.