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50
EVOLUTION OF LIFE.
ANIMAL KINGDOM.
' Protozoa.
' Monads.
Amoebse.
- Gregarinse.
Infusoria.
Sponges.
Coelenterata.
'-Fishes.
Vermes,
Worms.
Star-Fish es.
[ Sea- Cucumbers,
Crabs.
Insects.
[ Spiders.
' Lamp Shells.
Oysters.
Snails.
Cuttle-Fishes.
' Fishes.
Batrachia.
- Reptiles.
Birds.
^ Mammals.
Articulata.
Centipedes.
