- FondsYapp - Papers and photographs of R. H. (Harry) Yapp
- Series3 - Photographic collections
- Subseries1 - Glass plate negatives
- FileG - General (unclassified)
- 35 more...
- 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
- ItemG43 - Wind Hollow
- ItemG44 - [Photograph of sand dunes?]
- 61 more...