Dec 18 Corn closed at $3.7175/bushel, down $0.11 from yesterday's close.  Sep 18 Wheat closed at $5.4675/bushel, down $0.1775 from yesterday's close.  Nov 18 Soybeans closed at $8.6175/bushel, down $0.4225 from yesterday's close.  Dec 18 Soymeal closed at $323.3/short ton, down $11.6 from yesterday's close.  Dec 18 Soyoil closed at 28.41 cents/lb down 0.47 cents from yesterday's close.  Oct 18 Live Cattle closed at $109.25/cwt up $0.2 from yesterday's close.  Sep 18 Feeder Cattle closed at $149.525/cwt up $0.5 from yesterday's close.  Oct 18 Lean Hogs closed at $51.175/cwt down $0.225 from yesterday's close.  Sep 18 WTI Crude Oil closed at $67.73/barrel up $0.92 from yesterday's close. ...