300 dpi: (d1323-1.jpg)
640 pixels wide: (d1323-1.jpg)
![]() Image Number D1323-1 |
Agricultural engineer Barry Allred conducts an experiment to measure permeability (water flow capacity) of a filter material.
Photo by Peggy Greb.
300 dpi: (d1323-1.jpg)
640 pixels wide: (d1323-1.jpg)
![]() Image Number D1323-1 |
Agricultural engineer Barry Allred conducts an experiment to measure permeability (water flow capacity) of a filter material.
Photo by Peggy Greb.