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Register der Afbeeldingen.
| blz. | |
| Alisma plantago | 5 |
| Aquarium | 23 |
| Blaasjes v. Utricularia | 137 |
| Blaasjeskruid | 131, 132 |
| Calypterix virgo | 41 |
| Ceratophyllum submersum | 87, 113, 169 |
| Culex pipiens | 3 |
| Cyclops | 65 |
| Cypergras | 23 |
| Daphnia | 65, 68 |
| Donacia | 17 |
| Dotterbloem | 83 |
| Duizendblad | 87 |
| Dytiscus marginalis | 5 |
| Ei van Hydra | 77 |
| Elodea canadensis | 87, 102 |
| Eristalis tenax | 92 |
| Fonteinkruid | 87, 169 |
| Gaasvlieg | 17 |
| Gammarus pulex | 67 |
| Hippuris vulgaris | 125 |
| Hoornblad | 87, 113, 169 |
| Hottonia palustris | 148, 149 |
| Hydra | 70 |
| Hydrocharis | 5, 169 |
| Hydrometra | 41 |
| Hydrophilus piceus | 9 |
| Isolepus | 23 |
| Kikkerbeet | 5, 169 |
| Kokers v.phryganiden | 81, 83, 85 |
| Kokerjuffer | 95, 97 |
| Kroos | 70, 172 |
| Larven v. Dytiscus | 41 |
| „ v. Hydrophilus | 49 |
| „ v. Waterjuffer | 41 |
| Lidsteng | 125 |
| Leeuwenhoek | 71 |
| Limnea stagnalis | 61 |
| Monddeelen v. kevers | 30 |
| Myriophyllum spicatum | 87 |
| Naucoris cimicoides | 41 |
| Nepa cinerea | 17 |
| Nest v. Hydrophilus | 46 |
| Netelorganen | 77 |
| Notonecta glauca | 17 |
| Phryganiden | 83, 95, 97 |
| Planorbis | 61 |
| Poelslak | 61 |
