=Eve of Waterloo.=--On February 27th, 1815, Napoleon, untamed by adversity, escaped from Elba, and on March 1st landed at Cannes in Provence with 1,000 determined followers, but so rapidly did the people rally to his standard that by the 20th he had reached Paris with an army of such proportions that Louis was compelled to retire to Ghent, and the Bourbon dynasty was again forgotten. Early on the morning of June 12th Napoleon quitted the capital, on the 14th joined the army collected on the frontier, and commenced his last campaign, which was to terminate on the 18th at Waterloo. Wellington had been sent to take charge of an army which he described in a letter as "very weak and ill-equipped, and a very inexperienced staff," but we now know that, though it was "a green army," the right material was there, and only required the moulding of opportunity to make good form. Wellington's army comprised British, Hanoverian, and Belgian troops, with contingents of Nassau and Brunswick Oels. Of the 78,500 men comprising it, only about 43,000 were British, German, or Hanoverians. By the 18th it had been reduced to 74,040. The Prussian army was 115,000 strong. The French army, estimated at not less than 154,370, with 296 pieces of cannon--and variously at 127,000, 122,000, and 115,000, with 350 guns--was mainly composed of men "whose trade was war, and whose battles were as many as their years"; so that against the heterogeneous mass of men of various tongues commanded by Wellington, his great opponent was to hurl an army of veterans who could well be called upon to repeat the deeds of Marengo, of Friedland, and of Austerlitz. As it happened, the raw levies of Britain were to emulate the deeds of their brethren at Badajoz and Albuera. On June 15th Napoleon's army crossed the Sambre, and on the morning of the 16th at Ligny he forced back the Prussians, but Blucher--falling back upon Wavre instead of Ligny--upset the French General's calculations. Meanwhile Wellington, having made arrangements with Blucher, was with his officers in the celebrated ballroom of the Duchess of Richmond at Brussels. Two hours after midnight the gaiety of the brilliant ballroom was subdued, and following the "sound of revelry by night" came "the cannon's opening roar" at Quatre Bras.