[Illustration: PL. LVII--SCALLOPED DISKS. 1. Stone, Warrior River, Ala. 2. Stone, Lick Creek Mound, Tenn. 3. Stone, Etowah, Valley, Ga. 4. Stone, Carthage, Ala. 5. Stone, Sun symbol, Uxmal.] The short time at my disposal has barely permitted me to collect the facts, and I shall have to leave it to the future or to others to follow out fully the suggestions here presented. I had expected to find some uniformity in the numbers or ratios of the various zones, circles, and dots, and by that means possibly to have arrived at some conclusion as to their significance. I have already shown that certain elements of the design are fixed in position and number, while others vary, and the following table is presented that these facts may be made apparent. The list is quite incomplete. It will be seen by reference to the fourth column that the involute symbol of the inner zone is, with one exception, divided into three parts. The second zone is not given in the table, as it is always plain. The third or dotted zone contains circlets which range from six to nine, while the dots, which have been counted in a few cases only, have a wide range, the total number in some cases reaching three hundred and forty. The bosses of the outer zone range from thirteen to eighteen. The examples in stone seem to have a different series of numbers. The student will hardly fail to notice the resemblance of these disks to the calendars or time symbols of Mexico and other southern nations of antiquity. There is, however, no absolute identity with southern examples. The involute design in the center resembles the Aztec symbol of day, but is peculiar in its division into three parts, four being the number almost universally used. The only division into three that I have noticed occurs in the calendar of the Muyscas, in which three days constitute a week. The circlets and bosses of the outer zones gives them a pretty close resemblance to the month and year zones of the southern calendars. My suggestion that these objects may be calendar disks will not seem unreasonable when it is remembered that time symbols do very often make their appearance during the early stages of barbarism. They are the result of attempts to fix accurately the divisions of time for the regulation of religious rites, and among the nations of the south constituted the great body of art. No well-developed calendar is known among the wild tribes of North America, the highest achievements in this line consisting of simple pictographic symbols of the years, but there is no reason why the mound-builders should not have achieved a pretty accurate division of time resembling, in its main features, the systems of their southern neighbors. Column headers: [A] Illustrated in-- [B] Collection. [C] Locality. [D] Divisions of involute. [E] Circlets in 2d zone. [F] Bosses in marginal zone. [G] Dots in 2d zone. [H] Peculiar features.