- 1. Frog, young tadpole, t.s. through head Lieder_8309e
- 2. Compound eye, t.s. through head of worker (Apis mellifica), showing the structure of the typical Lieder_In251e
- 3. Compound eye, t.s. through head of queen (Apis mellifica) Lieder_In253f
- 4. Compound eye, t.s. through head of Apis mellifica, tangential section showing t.s. of ommatidia Lieder_In275e