- FondsYapp - Papers and photographs of R. H. (Harry) Yapp
- Series3 - Photographic collections
- Subseries1 - Glass plate negatives
- FileG - General (unclassified)
- 6 more...
- ItemG7 - [Diagram of buttercup]
- ItemG8 - [Diagram of several plants]
- ItemG9 - [Figure 935]
- ItemG10 - [Figure 776]
- ItemG11 - [Plate II]
- ItemG12 - [Figure 778]
- ItemG13 - [Diagram of early stages of bean growth]
- ItemG14 - [Diagram of early stages of plant growth]
- ItemG15 - [Diagram of plant root growth]
- 90 more...