At all events, no other Rebel artillery has played upon us with such overwhelming effect. The troops being gone, we had the better leisure and opportunity to look into other matters. It is natural enough to suppose that the centre and heart of Washington is the Capitol; and certainly, in its outward aspect, the world has not many statelier or more beautiful edifices, nor any, I should suppose, more skilfully adapted to legislative purposes, and to all accompanying needs. But, etc., etc. [Footnote: We omit several paragraphs here, in which the author speaks of some prominent Members of Congress with a freedom that seems to have been not unkindly meant, but might be liable to misconstruction. As he admits that he never listened to an important debate, we can hardly recognize his qualification to estimate these gentlemen, in their legislative and oratorical capacities.] * * * * * We found one man, however, at the Capitol, who was satisfactorily adequate to the business which brought him thither. In quest of him, we went through halls, galleries, and corridors, and ascended a noble staircase, balustraded with a dark and beautifully variegated marble from Tennessee, the richness of which is quite a sufficient cause for objecting to the secession of that State. At last we came to a barrier of pine boards, built right across the stairs. Knocking at a rough, temporary door, we thrust a card beneath; and in a minute or two it was opened by a person in his shirt-sleeves, a middle-aged figure, neither tall nor short, of Teutonic build and aspect, with an ample beard of a ruddy tinge and chestnut hair. He looked at us, in the first place, with keen and somewhat guarded eyes, as if it were not his practice to vouchsafe any great warmth of greeting, except upon sure ground of observation. Soon, however, his look grew kindly and genial, (not that it had ever been in the least degree repulsive, but only reserved,) and Leutze allowed us to gaze at the cartoon of his great fresco, and talked about it unaffectedly, as only a man of true genius can speak of his own works. Meanwhile the noble design spoke for itself upon the wall. A sketch in color, which we saw afterwards, helped us to form some distant and flickering notion of what the picture will be, a few months hence, when these bare outlines, already so rich in thought and suggestiveness, shall glow with a fire of their own,--a fire which, I truly believe, will consume every other pictorial decoration of the Capitol, or, at least, will compel us to banish those stiff and respectable productions to some less conspicuous gallery. The work will be emphatically original and American, embracing characteristics that neither art nor literature have yet dealt with, and producing new forms of artistic beauty from the natural features of the Rocky-Mountain region, which Leutze seems to have studied broadly and minutely. The garb of the hunters and wanderers of those deserts, too,