We understand that Dr. A/C. Donaldson, who resides a few miles below this village, has discovered an extensive bed of fire clay, suitable for glass, pots, or furnaces. Brick manufactured from this material will be found valuable for our smelling furnaces on Wisconsin and Iowa. The Doctor made the discovery in opening a coal mine. In his researches lie discovered a valuable bed of Kennel coal, equal ill quality to that of English, These valuable discoveries are destined to add much to the prosperity of our section of country and show the necessity of persevering in Geological researches, in order to acquire a thorough knowledge of the inexhnustahle resources of the west.—Iowa Sun.