Environmental Engineering Reference
In-Depth Information
2
1
3b
3a
5
4a
6
4b
7a
7b
Plate XXVIII
1
.
Chodatella
2
.
Chlorella
3
.
Oocystis.
4
.
Tetraedron.
5
.
Pleurotaenium.
6
.
Tetmemorus
7
.
Actinotae-
nium.
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