Virginia Tech, Extension Service2019-10-192019-10-19http://hdl.handle.net/10919/94707Radio active drill constructed by Mashall Loup for the Agronomy Department for us in putting radio active fertilizer materials down with small grain.positive, 4 x 5 in.image/jpegIn CopyrightApplied ScienceAgricultureVirginia Extension - Project 10Agricultural EngineeringPlanterFarm ImplementsFarm Operating EquipmentBiological Systems Engineering, Virginia TechStill Image