Cobb & Frost, Architects.

even in works of the barest utility. This is attained here by the lofty gable, crocketed and covered with carving, that rises above the plain archway which forms the entrance itself. The lintelled openings of the basement elsewhere are of a Puritanical severity, and so are the arched openings of the brick superstructure. Neither is there the least attempt to suggest the thing that is not in the interior arrangement by way of giving variety and interest to the exterior. In the treatment of the wall space, the only one of the “unnecessary features,” in which Mr. Ruskin declares architecture to consist, is the corniced frieze above the fourth story of the superstructure, with its suggested support of tall and slim pilasters; and this is quite justifiable as giving the building a triple division, and distinguishing the main wall from the gable. For this purpose, however, obviously enough, the dividing feature should be placed between the two parts it is meant to differentiate; and in the present instance this line is two stories higher than the point actually selected, and is now marked only by a light string course. If the emphatic horizontal belt had been raised these two stories, the division it creates would not only have corresponded to the organic division of the building, but another requisite of architectural composition would have been fulfilled, inasmuch as one of the three members would visibly have predominated over the others; whereas now the three are too nearly equal. It is quite true that the prolongation of the pilasters through two more stories would have made them spindle quite intolerably, but in any case they are rather superfluous and impertinent, and it would have decorated the fronts to omit them. The accentuation of vertical lines by extraneous features is not precisely what is needed in a twelve-story building of these dimensions. In these points, however, there is no departure from the spirit of commercial architecture. That occurs here, not in detail, but in the general scheme that gives the building its picturesqueness of outline. The corbelled turret at the angle makes more eligible the rooms its openings light, but the steep gabled roofs which this turret unites and dominates plainly enough fail to utilize to the utmost the spaces they enclose, and so far violate the conditions of commercial architecture. It seems ungracious to find fault with them on that account, they are so successfully studied in mass and in detail, and the group they make with the turret is so spirited and effective; but nevertheless they evidently do not belong to an office building, and, to borrow the expression of a Federal judge upon a famous occasion, their very picturesqueness is aliunde.

We have been speaking, of course, of the better commercial edifices, and it is by no means to be inferred that Chicago does not contain “elevator buildings” as disunited and absurd and restless as those of any other

CORNER OF INSURANCE EXCHANGE.

Burnham & Root, Architects.

American town. About these select few, also, there is nothing especially characteristic. They might be in New York, or Boston, or Philadelphia, for any local color that they exhibit. It is otherwise with the commercial buildings designed by Messrs. Burnham & Root. With the striking exception of Mr. Richardson’s Field Building, the names of these designers connote what there is of characteristically Chicagoan in the architecture of the business streets, so that, after all, the individuality is not local, but personal. The untimely and deplorable death of John Wellborn Root makes it proper to say that the individuality was mainly his. It consists largely in a clearer perception than one finds elsewhere of the limitations and conditions of commercial architecture, or in a more austere and self-denying acting upon that perception. This is the quality that such towering structures as the Insurance Exchange, the Phœnix Building, and “The Rookery” have in common, and that clearly distinguishes them from the mass of commercial palaces in Chicago or elsewhere. There is no sacrifice to picturesqueness of the utilitarian purpose in their general form, as in the composition of the Owings Building, and no denial of it in detail, as in the irrelevant arcade of the Studebaker Building. Their flat roofs are not tormented into protuberances in order to animate their sky-lines, and those of them that are built around an interior court are frankly hypæthral. Nor is there in any of them any incongruous preciousness of material. They are of brick, brown or red, upon stone basements, and the ornament is such, and only such, as is needed to express and to emphasize the structural divisions and dispositions. These are negative merits, it is true, but as our commercial architecture goes, they are not less meritorious on that account, and one is inclined to wish that the architects of all the commercial palaces might attend to the preachments upon the fitness of things that these edifices deliver, for they have very positive merits also. They are all architectural compositions, and not mere walls promiscuously pierced with openings, or, what is much commoner, mere ranges of openings scantily framed in strips of wall. They are sharply and unmistakably divided into the parts that every building needs to be a work of architecture, the members that mark the division are carefully and successfully adjusted with reference to their place and their scale, and the treatment of the different parts is so varied as to avoid both monotony and miscellany. The angle piers, upon the visible sufficiency of which the effectiveness, especially of a lofty building, so largely depends, never fail in this sufficiency, and the superior solidity that the basement of any building needs as a building, when it cannot be attained in fact by reason of commercial exigencies, is suggested in a more rugged and more massive treatment not less than in the employment of a visibly stronger material. These dispositions are aided by the devices at the command of the architect. The angle piers are weighted to the eye by the solid corbelled pinnacles at the top, as in the Insurance Exchange and the Rookery, or stiffened by a slight withdrawal that gives an additional vertical line on each side of the arris, as in the Phœnix, while the same purpose is partly subserved in the Rookery by the projection from the angle of the tall metallic lantern standards that repeat and enforce this line. The lateral division of the principal fronts is similar in all three structures. A narrow central compartment is distinguished in treatment, by an actual projection or by the thickening of the pier, from the longer wings, while the coincidence of this central division with the