The approval of these measures by the French Government was such, that, by a decree of August 28th, 1839, the merely temporary organization of the Tirailleurs was made permanent and separate, and the corps was sent to camp at Fontainebleau. There, the agility of the men, their neat and convenient uniforms and equipments, and their rapid and orderly evolutions struck every one who saw them. When, at the close of their period of encampment, the King was passing them in review as a special compliment, he warmly asked Marshal Soult what he thought of the new corps. The Marshal, in replying, emphatically expressed the wish that His Majesty had thirty such battalions instead of only one. However, the new organization found some opponents, and many urgent arguments were adduced to prevent its extension. In order to put all these to the test, it was finally determined to submit the Tirailleurs to the ordeal of actual warfare; and they were speedily shipped to Africa, where it was quickly discovered that their gymnastic training had so prepared them that they easily became inured to the fatigues and privations of campaigning life. Their heavy carabines succeeded admirably, and the skill of their marksmen--among others, of a certain Sergeant Pistouley--was the theme of universal praise. The Tirailleurs were now brigaded with the Zouaves, and erelong had shared glorious laurels with those celebrated troops. Finally, in 1840, the dangers that seemed to be accumulating over France on all sides assumed so dark a form that the patriotism of the whole nation was aroused, and, in the midst of the general outpouring of men and means, the Duke of Orléans was authorized to form no less than ten battalions of Chasseurs. The Duke set himself about this important task with all the zeal that had characterized his first effort to create the organization, and all the erudition he had gleaned from years of military study and research. In the first place, he abandoned the title of Tirailleurs, as being not sufficiently distinctive, and adopted that of Chasseurs à Pied, or Foot-Chasseurs. The organization by battalions was retained, and the one formed two years before at Vincennes was designated as the First Battalion, and recalled from Africa to St. Omer as a model for the other nine that were to be organized. St. Omer offered extensive barracks, a vast field suitable to military exercise, and, in fine, all the establishments requisite for a large concourse of troops. The ranks were soon filled with picked men from all sides, and ardent, ambitious officers from every corps of the army sought commands. Among the latter we may mention a certain Captain, since Marshal de M'Mahon, who was put at the head of the Tenth Battalion.