• Agricultural Hand Signals 

    Baker, David E. (University of Missouri Office of Extension, 1993-10)
    Voice communications are impossible in certain agricultural situations due to distance and noise. For this reason, standard Agricultural Hand Signals have been developed for farm machinery operators by the American Society ...
  • Noise: The Invisible Hazard 

    Baker, David E. (University of Missouri Office of Extension, 1997-12)
    Farm workers experience one of the highest rates of hearing loss among all occupations. This is due in part to the many potential sources of loud noise on the farm: tractors, combines, grinders, choppers, shotguns, conveyors, ...