In like manner, it would not be difficult by the same process to trace the steps by which the rude tepés of the Tartar steppes bloomed at last into the wondrous domes of the Patan and Mogol Emperors of Delhi or the other Mahomedan principalities in the East. To do all this would form a most interesting chapter in the history of architecture, more interesting, perhaps, than the one we are about to attempt; but it is not the same, though both spring from the same origin. The people or peoples who eventually elaborated these wonderful mausoleums or domed structures affected, at the very earliest periods at which we become acquainted with them, what may be called Microlithic architecture. In other words, they used as small stones as they could use, consistently with their constructive necessities. These stones were always squared or hewn, and they always sought to attain their ends by construction, not by the exhibition of mere force. On the other hand, the people whose works now occupy us always affected the employment of the largest masses of stone they could find or move. With the rarest possible exceptions, they preferred their being untouched by a chisel, and as rarely were they ever used in any properly constructive sense. In almost every instance it was sought to attain the wished-for end by mass and the expression of power. No two styles of architecture can well be more different, either in their forms or motives, than these two. All that they have in common is that they both spring from the same origin in the chambered tumulus, and both were devoted throughout to sepulchral purposes, but in form and essence they diverged at a very early period. Long before we become acquainted with either; and, having once separated, they only came together again when both were on the point of expiring. The Buddhist Dagobas are another offshoot from the same source, which it would be quite as interesting to follow as the tombs of the kings or emperors; for our present purposes, perhaps, more so, as they retained throughout a religious character, and being consequently freed from the ever-varying influence of individual caprice, they bear the impress of their origin distinctly marked upon them to the present day.