| Color Space | Uncalibrated | Orientation | 1: Normal (0 deg) |
| Resolution Unit | Inch | X Resolution | 300 dots per ResolutionUnit |
| Y Resolution | 300 dots per ResolutionUnit | Compression | Jpeg Compression |
| Keywords | black grama quadrat | Caption | Chartings of black grama quadrats made in 1931 after 6 years of clipping |