221 Acknowledgements

Terry Bramwell, Davis Iron Works, Hewitt, Texas.

Keith Caulfield, P.E., Structural Engineer.

Jared Doughty, Graduate Technician, Department of Agricultural Education, Texas A&M University.

Kirk Edney, Curriculum Specialist, Instructional Materials Service, Texas A&M University.

Rick Ford

Shannon Houy, Graduate Assistant, Department of Agricultural Education, Texas A&M University.

Vickie Marriott, Office Software Associate, Instructional Materials Service, Texas A&M University.

Christine Stetter, Artist, Instructional Materials Service, Texas A&M University.

Travis W. Trant, Graduate Assistant, Department of Agricultural Education, Texas A&M University.

Central Concrete Pump Service, Inc. and Aggieland Ready Mix, Inc.

Praxair Distribution Inc.