The Trocadero has been purchased by the town council of Paris, and is to be a permanent structure, its flanking salons, forty-two feet wide, being known as "Galeries de l'Art Retrospective." Its collection is to form a history of civilization, and will probably include the Egyptian, Assyrian and similar collections from the Louvre, as well as the Ethnological, which is at St. Germain. It is designed to represent in chronological order ancient and historic art, both liberal and mechanical, with the furniture, arms and tools of the Middle Ages and Renaissance, arms, implements and fabrics from the East, Africa and Oceanica, and a collection of musical instruments of all ages and countries. This is an ambitious programme, but will no doubt be well accomplished. Its general color is that of the beautiful stone of this region, a delicate cream. The uniformity is broken by great boldness and variety in the structural form of the building, and by its pillars, deep colonnades and heavy cornices, giving shadows which prevent monotony of tint. While artists and architects disagree like the proverbial doctors, and purists shudder at the jumble of orders, periods and nationalities, a tyro may well hesitate. An opinion of the building will no more suit everybody than does the building itself; but one cannot entirely forfeit one's reputation for taste, for each will find some agreeing judgments. All must acknowledge that it has a gala air. Its central dome, tall minarets and wings widespread toward the river crown the height and seem to foster the beauties they partly enclose. The circular corridor of the rotunda is surmounted by the Muses and other figures typical of the future purposes of the building. The rotunda-walls are themselves castellated, the towers being interplaced with windows of Saracenic arched form. The beton pavement of the corridors and balcony is made of annular fragments, facets upward, of black, red, white and slate-colored marbles, feldspar and other stones. It is as hard as natural rock and as smooth as half-polished marble. A tessellated fret pattern is made along the borders of the corridor floor, consisting of triple rows of smooth cubes of marble inserted in the cement. The square balusters are of red-mottled marble, with base and entablature of dull rose. The square corner pillars support figures allegorizing the six divisions of the earth. The vestibules at the sides of the tower are open east and west for the passage to and from the garden, and at the sides have doors which admit to the Grande Salle and the flanking galleries respectively. The interior red scagliola columns of the vestibule are in pairs, with white bases and capitals, the latter combining the lotus-leaf with the volute. The soffits of the ceiling have panels of yellow with orange border, contrasting with iron beams painted a chocolate brown.