Frora the National Intelligfncer. Some friend in Boston has sent us an editorial articlo of a journal of that city on the military character of the new commander of the ariny of the Potomae, and coinciding as it does with the opinión recently expressed by ourselves of that distiuguishsd officer, we insert the following extracta with pleasure, withholding our acquiescence, however, from the exclusive nature of the remarks with which the extract sets out: " The appointment of no other General but Rosecrans could have given so muoh just coufidence to the army and the country as that of Major General Joseph Hooker, for the leader of the Army of the Potomac. No educated and competent army offieer, of whatever iuclining, bas ever characterized liim as a mere 'fighting General ' Au ignorant and erroneous impression has sprung from bis having been cailed 'Fighting Joe Hooker .' This title has been gloriously earned, but most iuadequately desoribes the man. Noted among his class-mates at West Poiut for judsment, he won his way in Mexico by an aímost uuexampled striot succession of brevets, from a Lieutenancy to a Lieutenaut Colonelcy, in the regular arniy. "Frora the day of his oommand nd clear capacity at Iiudd's Ferry to the terrible battle of Williamsburg, where not the mere fighting qualities of generalship, but the coolest and wisest coin binations uuder the fire of greatly superior numbers saved the day, and won from De Joinville the words 'you are a 2reat General;' and from the day of the battle of Fair Oaks, where he saw Richmond clearly in our grasp, to the battle of Antietam, 'whose progrcss stopped with his wound, he has boen the cour;eous, dignified, heroic, iuspiring, thapïng, and forelookiug General of a brigade, a división, or a corps. ''This is no mere opinión of our own. The quaüties we have named are those nvariably ascribed to him by our ablest officers, volunteer and regular, whether 'rienda of General McClellan or not. - íío one has ever accused him of rashncss, or of fai'ing to follow up an advantage. To be sure, it has yet to be seen that he ïas the preseieuce, the comprehensiveness, and the faculty for combination re quisite to handle a huudred thousand men."