- | 11c | multi | Erosion from over-grazing | — | — | |
- | 25c | multi | Wall construction to collect sediment | — | — | |
- | 30c | multi | ||||
- | 50c | multi |
- | 12c | multi |
- | 12c | multi | .20 | .20 | ||
- | 25c | multi | ||||
- | 30c | multi | ||||
- | 50c | multi |
- | 12c | multi | .20 | .20 | ||
- | 25c | multi | ||||
- | 30c | multi | ||||
- | 50c | multi |
- | 12c | multi | Andreas Vesalius | .20 | .20 | |
- | 25c | multi | Marcello Malpighi | |||
- | 30c | multi | Francois Magendie | |||
- | 50c | multi | William Stewart Halsted |