If Wm.Burnet owed taxes of $393.21/2 on 188 acres in 1809,that would indelicate that he owned prime farm land. It may have had a mill section it (i.e. a flowing source of water suitable for operating a grist mill which was considered valuable). Edwards 250 acres might have been mountain land (i.e. straight up and full of rocks and trees.) My great-grand father made a lot of money over in Hamilton county in the 1880-90s,buying land on the mountains for as little as a penny an acre,tanbarking it then cutting the timber and selling it. He would then let the land be sold for taxes,because it was of no further value to him.