A tetrastyle portico (4 columns in front) in triple rows of the same proportions and order with the columns of the colonnade, distinguishes the entrance to the Monument, and serves as a pedestal for the triumphal car and statue of the illustrious Chief; the steps of this portico are flanked by massive blockings, surmounted by appropriate figures and trophies. Over each column, in the great frieze of the entablatures around the entire building, are sculptured escutcheons (coats of arms of each State in the Union), surrounded by bronze civic wreaths, banded together by festoons of oak leaves, &c., all of which spring (each way) from the centre of the portico, where the coat of arms of the United States are emblazoned. The statues surrounding the rotunda outside, under the colonnade, are all elevated upon pedestals, and will be those of the glorious signers of the Declaration of Independence. Ascending the portico outside to the terrace level a lofty vomitoria (door way) 30 feet high leads into the cella (rotundo gallery) 50 feet wide, 500 feet in circumference and 60 feet high, with a colossal pillar in the centre 70 feet in diameter, around which the gallery sweeps. This pillar forms the foundation of the obelisk column above. Both sides of the gallery are divided into spaces by pilasters, elevated on a continued zocle or base 5 feet high, forming an order with its entablature 40 feet high, crowned by a vaulted ceiling 20 feet high, divided by radiating archevaults, corresponding with the relative positions of the opposing pilasters, and enclosing deep sunken coffers enriched with paintings. The spaces between the pilasters are sunk into niches for the reception of the statues of the fathers of the Revolution, contemporary with the immortal WASHINGTON; over which are large tablets to receive the National Paintings commemorative of the battle and other scenes of that memorable period. Opposite to the entrance of this gallery, at the extremity of the great circular wall, is the grand niche for the reception of the statue of the "Father of his Country"--elevated on its appropriate pedestal, and designated as _principal_ in the group by its colossal proportions. This spacious Gallery and Rotunda, which properly may be denominated the "National Pantheon," is lighted in four grand divisions from above, and by its circular form presents each subject decorating it walls in an interesting point of view and with proper effect, as the curiosity is kept up every moment, from the whole room not being presented to the eye at one glance, as in the case of a straight gallery.