CAnOKIA MOUND. Interesting Rclle of an Extinct Race Which Once Inhabited. Iui- Iui- Beia, ' ' ' ' An Artificial Eleration Onoa Inhabited bj monks and Later bj Farmera. Pottery ef Deft WorkmanBhlp Articles ef Per sonal Adornment As Old isorjin; Ground. : A PAST CIVILIZATION. Professor McAdama, in hi new book entitled "Record of the Ancient Race hi the Mississippi Yalley," give a most interesting account of he ancient mounds on Cahokia Creek in the southern southern part of thi county. The bottom between the bluff and the Mississippi River at this point is an extensive plain, tan .or twelve mile in width. In the center of this plain are th remain remain of what Mr. McAdam think wa at on time an extensive city inhabited by the mound builder. The rain comprise a eolleetion of nearly 100 hugs earthen mound, th central and larger of which is 100 feet high, and covers atxyitj sixteen acre of ground. Thi gret central mound ia indeed indeed a pyramid with straight sides. -The -The base of the structure is a parallelogram, being longor north and south. On the south side, some thirty feet above the base, is a terrace comprising several several acres, and upon which ia now growing an orchard of apple. tree. Some thirty or mora leu 1 a nova uu terrace is a smaller one on tus west side.