| Circles and Patterns |
| Star Pattern | 25 Forms |
| Star Pattern | 50 Forms |
| Circle | 5 Forms. Four diatoms surrounding a central diatom |
| Circle | 25 Forms |
| Circle | 50 Forms |
| Rosette | 50 Forms |
| Comparison Slides |
| Centric and Pennate | Comparison of major group of diatoms |
| Pictures in Diatoms |
| Bicycle | Arachnoidiscus and Nitzschia |
| American Eagle | Surirella and Gyrosigma |
| American Flag | Triceratium pentacrinus and Gyrosigma balticum |
| Choir Boys | Arachnoidiscus girdle bands, Rhabdonema, Synedra and Eunotia |
| Faces | Arachnoidiscus, Eunotia and Cocconeis |
| Butterfly | Gyrosigma. Staphanodiscus, Girdle bands |
| Penny Farthing | Arachnoidiscus, Synedra and Eunotia |
| Microscope | Pinnularia, Rhopolodia and Sponge spicule |