1. Radiolaria, mixed species
2. Foraminifera, many different forms
3. Diatoms, mixed species, recent from fresh water
4. Diatoms, mixed species, fossil from fresh water
5. Diatoms, mixed species, recent - fossil marine
6. Eleagnus, olive tree, scale-like stellate hairs
7. Scales of butterfly wing showing variation of color and form
8. Plant stem, showing symmetrical arrangement of vascular bundles
9. Flower bud, symmetrical arrangement. of floral parts