- FondsYapp - Papers and photographs of R. H. (Harry) Yapp
- Series3 - Photographic collections
- Subseries1 - Glass plate negatives
- FileG - General (unclassified)
- 33 more...
- ItemG34 - [Photograph]
- ItemG35 - [Photograph of vegetation]
- ItemG36 - [Photograph of vegetation]
- ItemG37 - [Photograph of vegetation]
- ItemG38 - [Photograph of vegetation]
- ItemG39 - Sands
- ItemG40 - Sands
- ItemG41 - Sand dunes with growing Bent
- ItemG42 - Sands, wind action on
- 63 more...