Sequence on wheat threshing on prairie, old steam tractor powering thresher, men forking wheat into thresher from horse-drawn wagon. Extreme LS of threshing operation, elevator in background, bales of hay on field in foreground. Closer shots of operation, elevators. Shot of large farm tractor pulling harrow moving by camera. Cut to tractor and harrow turning past the camera. Shots of young man driving tractor, as seen from the very front of the machine. Similar shot from other side of the tractor harrows visible in background. Various shots of single combine at work, truck being loaded with grain. Close FOLLOW SHOTs of cab and operator, "windrow pickup" mechanism and "chaff spreader".