25 slides

1 - Arcella, shelled ameba
2 - Vorticella, a stalked ciliate
3 - Colpidium, a common holotrich ciliate
4 - Spongilla, fresh water sponge, t.s. showing channels
5 - Planaria, fresh water flat worm, t.s. of body
6 - Tubifex, a fresh water oligochaete
7 - Plumatella, moss animal, section of colony
8 - Cyclops, nauplius larva w.m.
9 - Culex pipiens, common mosquito, larva w.m.
10 - Sphaerotilus natans, bacteria from putrid water forming chains
11 - Nostoc, blue green alga with heterocysts
12 - Anabaena, filamentous blue green alga
13 - Gloeocapsa, small colonies within sheaths
14 - Rivularia, blue green alga with basal heterocysts
15 - Beggiatoa, a colourless alga showing lack of chlorophyll
16 - Zygnema, filamentous alga with stellate chloroplasts
17 - Cosmarium, desmid showing the typical isthmus 
18 - Chlamydomonas, biflagellate alga
19 - Haematococcus, unicellular red algae
20 - Hydrodictyon, water-net
21 - Chlorella, unicellular green alga
22 - Dynobrion, a golden alga forming colonies
23 - Mixed plankton, strewn slide No. I
24 - Mixed plankton, strewn slide No. II
25 - Mixed plankton, strewn slide No. III